The Food Chain:
An ecosystem is a living community which depends on each member and its surrounding environment. The living part of an ecosystem is sometimes called a food chain.
Every participant in an ecosystem has an important part to play and if one becomes more dominant than the others, the ecosystem can develop problems.
We'll start with the producers. These are living things which take the non living matter from the environment, such as minerals and gases and uses them to support life. Green plants are considered producers and the are at the beginning of the food chain.
Next are the consumers. These living things need the producers to be their food.
Animals who eat plants are called herbivores. They are considered consumers and are next in the food chain.
Animals who eat other animals are called carnivores. They also considered consumers and are a link farther along on the food chain since they need the herbivores for their food.
Animals and people who eat both animals and plants are called omnivores, and they are also part of the consumer piece of the ecosystem.
Finally, the last part of the ecosystem is the decomposers.
These are the living things which feed off dead plants and
animals and reduce their remains to minerals and gases
again. Examples are fungi, like mushrooms, and bacteria.
Monday, 10 December 2007
FAST FACTS about EARTH:
circumferance: 24,901.5 miles
diameter: Nearly 8,000 miles
surface area: 196,935,000 sq miles
percent of earth's ocean approximatly 70% *
percent of earth's land: approximatly 30%
highest point:Mt Everest 29, 028 above sea level
lowest point: Dead Sea 1,302 below sea level
* of the 70 percent of water; 97 percent is salt water, 3 percent is fresh water
The EARTH is made of the following CHEMICAL ELEMENTS:
oxygen 46.6 %
aluminum 8.1
iron 5
sodium 2.8
magnesium 2.1
calcium 3.6
potassium 2.6
silicon 27.7
other 1.5
Here is an example of how long it takes garbage to break down:
plastics take 500 years
aluminum cans take 500 years
organic materials take 6 months
cotton, rags, and paper take 6 months.
Other Interesting FACTS:
Earth is referred to as the BLUE PLANET. WHY? Because from space,
the oceans combined with our atmosphere make our planet look blue.
Earth is estimated to be 3-5 Billion Years old.
Earth is estimated to weigh 6,585,600,000,000,000,000,000 tons.
The area of the earth is almost 200 million square miles.
Earth travels through space at 66,700 miles per hour.
Earth's oceans are an average of 2 Miles deep.
Earth's rotation on its axis makes a day at 24 hours...
Earth's orbit around the sun makes a year at nearly 365 and 1/2 days
Earth is tipped at 23 and 1/2 degrees in orbit. That axis is what causes our seasons.
Antarctica is the coldest place on earth. The continent is almost entirely covered in ICE !
Only 11 percent of the earth's surface is used to grow food.
Breeze carries about 100 Million tons of sand particles around the earth yearly.
That means if you live in America-you could have Sand that came from the Gobi desert in China.
diameter: Nearly 8,000 miles
surface area: 196,935,000 sq miles
percent of earth's ocean approximatly 70% *
percent of earth's land: approximatly 30%
highest point:Mt Everest 29, 028 above sea level
lowest point: Dead Sea 1,302 below sea level
* of the 70 percent of water; 97 percent is salt water, 3 percent is fresh water
The EARTH is made of the following CHEMICAL ELEMENTS:
oxygen 46.6 %
aluminum 8.1
iron 5
sodium 2.8
magnesium 2.1
calcium 3.6
potassium 2.6
silicon 27.7
other 1.5
Here is an example of how long it takes garbage to break down:
plastics take 500 years
aluminum cans take 500 years
organic materials take 6 months
cotton, rags, and paper take 6 months.
Other Interesting FACTS:
Earth is referred to as the BLUE PLANET. WHY? Because from space,
the oceans combined with our atmosphere make our planet look blue.
Earth is estimated to be 3-5 Billion Years old.
Earth is estimated to weigh 6,585,600,000,000,000,000,000 tons.
The area of the earth is almost 200 million square miles.
Earth travels through space at 66,700 miles per hour.
Earth's oceans are an average of 2 Miles deep.
Earth's rotation on its axis makes a day at 24 hours...
Earth's orbit around the sun makes a year at nearly 365 and 1/2 days
Earth is tipped at 23 and 1/2 degrees in orbit. That axis is what causes our seasons.
Antarctica is the coldest place on earth. The continent is almost entirely covered in ICE !
Only 11 percent of the earth's surface is used to grow food.
Breeze carries about 100 Million tons of sand particles around the earth yearly.
That means if you live in America-you could have Sand that came from the Gobi desert in China.
Science Education Myths
The Top Ten Myths of Science Education
MYTH #1: Kids hate taking science in school these days.
REALITY: Not! Half--50 percent--of 10-17 year olds put science... at the top or near the top of their list...of favorite subjects.
MYTH #2: Kids think that science is dull and boring.
REALITY: Not! 42 percent of 10-17 year olds say science is the subject (they) are most curious about. Science was ranked as boring by only 14 percent of the students.
MYTH #3: Kids think science class doesn't relate to the real world.
REALITY: Not! 94 percent of 10-17 year olds say that science isn't just in the classroom; it's part of everyday life in the world around you.
MYTH #4: Kids think learning science is mostly about memorizing facts.
REALITY: Not! 89 percent of 10-17 year olds say science lets (them) be very creative. And 89 percent also say the best way they can learn science is to observe things and do experiments (themselves).
MYTH #5: Kids grow up believing that science is more for boys and not for girls.
REALITY: Not! 89 percent of all 10-17 year olds say no to Science is more for boys than girls.
MYTH #6: Kids think science is for nerds.
REALITY: Not! 93 percent of all 10-17 year olds say no to Science is for nerds. And, of all subjects, science ranked the coolest.
MYTH #7: Most kids are turned off to science in school.
REALITY: Not! When 10-17 year olds were asked for positive and negative things about science, things they like best about science won hands down (91 percent) over things they don't like about science (32 percent).
MYTH #8: Most kids don't have access to computers at home.
REALITY: Not! 68 percent of 10-17 year olds say they have a computer in (their) home.
MYTH #9: All kids do with computers is play games.
REALITY: Not! Of those 10-17 year olds who have and use computers, 75 percent do school work, 64 percent learn things on their own, and 41 percent get information on science topics on their computers.
MYTH #10: Minority kids don't have access to computers at home
REALITY: Partly not! While slightly more than half of African American and Hispanic 10-17 year olds don't, 46 percent of African Americans and Hispanic kids say they have a computer in (their) home.
MYTH #1: Kids hate taking science in school these days.
REALITY: Not! Half--50 percent--of 10-17 year olds put science... at the top or near the top of their list...of favorite subjects.
MYTH #2: Kids think that science is dull and boring.
REALITY: Not! 42 percent of 10-17 year olds say science is the subject (they) are most curious about. Science was ranked as boring by only 14 percent of the students.
MYTH #3: Kids think science class doesn't relate to the real world.
REALITY: Not! 94 percent of 10-17 year olds say that science isn't just in the classroom; it's part of everyday life in the world around you.
MYTH #4: Kids think learning science is mostly about memorizing facts.
REALITY: Not! 89 percent of 10-17 year olds say science lets (them) be very creative. And 89 percent also say the best way they can learn science is to observe things and do experiments (themselves).
MYTH #5: Kids grow up believing that science is more for boys and not for girls.
REALITY: Not! 89 percent of all 10-17 year olds say no to Science is more for boys than girls.
MYTH #6: Kids think science is for nerds.
REALITY: Not! 93 percent of all 10-17 year olds say no to Science is for nerds. And, of all subjects, science ranked the coolest.
MYTH #7: Most kids are turned off to science in school.
REALITY: Not! When 10-17 year olds were asked for positive and negative things about science, things they like best about science won hands down (91 percent) over things they don't like about science (32 percent).
MYTH #8: Most kids don't have access to computers at home.
REALITY: Not! 68 percent of 10-17 year olds say they have a computer in (their) home.
MYTH #9: All kids do with computers is play games.
REALITY: Not! Of those 10-17 year olds who have and use computers, 75 percent do school work, 64 percent learn things on their own, and 41 percent get information on science topics on their computers.
MYTH #10: Minority kids don't have access to computers at home
REALITY: Partly not! While slightly more than half of African American and Hispanic 10-17 year olds don't, 46 percent of African Americans and Hispanic kids say they have a computer in (their) home.
Tuesday, 9 October 2007
ALL ANIMALS HAVE A NATURAL HOME.
WE CALL THE NATURAL HOME OF AN ANIMAL ITS HABITAT.
SOME ANIMALS LIVE ON LAND, SOME IN WATER , SOME BOTH ON LAND AND IN WATER AND SOME SPEND MOST OF THEIR TIME IN THE AIR FLYING HIGH AND HIGH.
DEPENDING ON THEIR HABITAT THREE BASIC CATEGORIES EXIST:
WE CALL THE NATURAL HOME OF AN ANIMAL ITS HABITAT.
SOME ANIMALS LIVE ON LAND, SOME IN WATER , SOME BOTH ON LAND AND IN WATER AND SOME SPEND MOST OF THEIR TIME IN THE AIR FLYING HIGH AND HIGH.
DEPENDING ON THEIR HABITAT THREE BASIC CATEGORIES EXIST:
- TERRESTRIAL ANIMALS(LAND)
- AQUATIC ANIMALS(WATER)
- AERIAL ANIMALS(AIR)
- AMPHIBIANS(LAND AND WATER)
Friday, 5 October 2007
A poem by Vasu Mittal
whose woods these are i think i know,
his house is in the village though,
he will not see me stopping here,
to watch his woods fill up with snow,
my little horse must think it queer,
to stop without a farmhouse near,
between the woods and frozen lake,
the darkest evening of the year....,
he gives his harness bells a shake,
to ask if there is some mistake.
the only other sound's the sweepof
easy wind and downy flake the woods are lovely dark and deep,
but i have promises to keep,and miles to go before i sleep,
and miles to go before i sleep...............
his house is in the village though,
he will not see me stopping here,
to watch his woods fill up with snow,
my little horse must think it queer,
to stop without a farmhouse near,
between the woods and frozen lake,
the darkest evening of the year....,
he gives his harness bells a shake,
to ask if there is some mistake.
the only other sound's the sweepof
easy wind and downy flake the woods are lovely dark and deep,
but i have promises to keep,and miles to go before i sleep,
and miles to go before i sleep...............
saving water
Reverse osmosis
Reverse osmosis is a separation process that uses pressure to force a solvent through a membrane retains the solute on one side and allows the pure solvent to pass to the other side.
Water conservation
It refers to reducing use of fresh water through technological or social method as goals.
Drip irrigation
Also known as trickle irrigation or micro-irrigation, is an irrigation method that minimize the use of water and fertilizers by allowing water to drip slowly to the roots of the plants.
Bio gas
It typically refers to a gas produced by the anaerobic digestion or fermentation of organic matter including manure, sewage sludge, municipal solid waste, biodegradable waste under anaerobic condition. It is comprised of carbon-dioxide and methane.
Rain water harvesting
Rainfall water harvesting is the term given to the conservation and storage of rainfall on outcrops and sheets of bare rock helping in managing water scarcity.
Vermicompost
Vermicompost is also known worm compost, worm casting, worm humus or worm manure. It is the end product of the breakdown of organic matter by species of earthworm.
Sewage treatment
It is the process or removing contaminants from waste water, both industrial and domestic. It includes physical, chemicals and biological processes to remove contaminants.
Solar water heater
In order to heat water using solar energy, a collector is fastened to the roof of a building or on a wall facing sun. In some cases, the collector may be tree standing.
Green building
• Eco- friendly paint
• Tiles to facilitate water seepage
• Double layered window glass for insulation
• Temperature control by Evaporating Air Cooling
Water conservation
• Rain water harvesting
• Drip irrigation
• R.O. Plant for purification of water
Garbage reuse & recycling
• Segregation of waste
• Sewage treatment
• Vermicomposting
• Bio gas production
Energy conservation
• Solar water heater
• Solar lights
Reverse osmosis
Reverse osmosis is a separation process that uses pressure to force a solvent through a membrane retains the solute on one side and allows the pure solvent to pass to the other side.
Water conservation
It refers to reducing use of fresh water through technological or social method as goals.
Drip irrigation
Also known as trickle irrigation or micro-irrigation, is an irrigation method that minimize the use of water and fertilizers by allowing water to drip slowly to the roots of the plants.
Bio gas
It typically refers to a gas produced by the anaerobic digestion or fermentation of organic matter including manure, sewage sludge, municipal solid waste, biodegradable waste under anaerobic condition. It is comprised of carbon-dioxide and methane.
Rain water harvesting
Rainfall water harvesting is the term given to the conservation and storage of rainfall on outcrops and sheets of bare rock helping in managing water scarcity.
Vermicompost
Vermicompost is also known worm compost, worm casting, worm humus or worm manure. It is the end product of the breakdown of organic matter by species of earthworm.
Sewage treatment
It is the process or removing contaminants from waste water, both industrial and domestic. It includes physical, chemicals and biological processes to remove contaminants.
Solar water heater
In order to heat water using solar energy, a collector is fastened to the roof of a building or on a wall facing sun. In some cases, the collector may be tree standing.
Green building
• Eco- friendly paint
• Tiles to facilitate water seepage
• Double layered window glass for insulation
• Temperature control by Evaporating Air Cooling
Water conservation
• Rain water harvesting
• Drip irrigation
• R.O. Plant for purification of water
Garbage reuse & recycling
• Segregation of waste
• Sewage treatment
• Vermicomposting
• Bio gas production
Energy conservation
• Solar water heater
• Solar lights
Reverse osmosis
Reverse osmosis is a separation process that uses pressure to force a solvent through a membrane retains the solute on one side and allows the pure solvent to pass to the other side.
Water conservation
It refers to reducing use of fresh water through technological or social method as goals.
Drip irrigation
Also known as trickle irrigation or micro-irrigation, is an irrigation method that minimize the use of water and fertilizers by allowing water to drip slowly to the roots of the plants.
Bio gas
It typically refers to a gas produced by the anaerobic digestion or fermentation of organic matter including manure, sewage sludge, municipal solid waste, biodegradable waste under anaerobic condition. It is comprised of carbon-dioxide and methane.
Rain water harvesting
Rainfall water harvesting is the term given to the conservation and storage of rainfall on outcrops and sheets of bare rock helping in managing water scarcity.
Vermicompost
Vermicompost is also known worm compost, worm casting, worm humus or worm manure. It is the end product of the breakdown of organic matter by species of earthworm.
Sewage treatment
It is the process or removing contaminants from waste water, both industrial and domestic. It includes physical, chemicals and biological processes to remove contaminants.
Solar water heater
In order to heat water using solar energy, a collector is fastened to the roof of a building or on a wall facing sun. In some cases, the collector may be tree standing.
Green building
• Eco- friendly paint
• Tiles to facilitate water seepage
• Double layered window glass for insulation
• Temperature control by Evaporating Air Cooling
Water conservation
• Rain water harvesting
• Drip irrigation
• R.O. Plant for purification of water
Garbage reuse & recycling
• Segregation of waste
• Sewage treatment
• Vermicomposting
• Bio gas production
Energy conservation
• Solar water heater
• Solar lights
Reverse osmosis
Reverse osmosis is a separation process that uses pressure to force a solvent through a membrane retains the solute on one side and allows the pure solvent to pass to the other side.
Water conservation
It refers to reducing use of fresh water through technological or social method as goals.
Drip irrigation
Also known as trickle irrigation or micro-irrigation, is an irrigation method that minimize the use of water and fertilizers by allowing water to drip slowly to the roots of the plants.
Bio gas
It typically refers to a gas produced by the anaerobic digestion or fermentation of organic matter including manure, sewage sludge, municipal solid waste, biodegradable waste under anaerobic condition. It is comprised of carbon-dioxide and methane.
Rain water harvesting
Rainfall water harvesting is the term given to the conservation and storage of rainfall on outcrops and sheets of bare rock helping in managing water scarcity.
Vermicompost
Vermicompost is also known worm compost, worm casting, worm humus or worm manure. It is the end product of the breakdown of organic matter by species of earthworm.
Sewage treatment
It is the process or removing contaminants from waste water, both industrial and domestic. It includes physical, chemicals and biological processes to remove contaminants.
Solar water heater
In order to heat water using solar energy, a collector is fastened to the roof of a building or on a wall facing sun. In some cases, the collector may be tree standing.
Green building
• Eco- friendly paint
• Tiles to facilitate water seepage
• Double layered window glass for insulation
• Temperature control by Evaporating Air Cooling
Water conservation
• Rain water harvesting
• Drip irrigation
• R.O. Plant for purification of water
Garbage reuse & recycling
• Segregation of waste
• Sewage treatment
• Vermicomposting
• Bio gas production
Energy conservation
• Solar water heater
• Solar lights
Reverse osmosis
Reverse osmosis is a separation process that uses pressure to force a solvent through a membrane retains the solute on one side and allows the pure solvent to pass to the other side.
Water conservation
It refers to reducing use of fresh water through technological or social method as goals.
Drip irrigation
Also known as trickle irrigation or micro-irrigation, is an irrigation method that minimize the use of water and fertilizers by allowing water to drip slowly to the roots of the plants.
Bio gas
It typically refers to a gas produced by the anaerobic digestion or fermentation of organic matter including manure, sewage sludge, municipal solid waste, biodegradable waste under anaerobic condition. It is comprised of carbon-dioxide and methane.
Rain water harvesting
Rainfall water harvesting is the term given to the conservation and storage of rainfall on outcrops and sheets of bare rock helping in managing water scarcity.
Vermicompost
Vermicompost is also known worm compost, worm casting, worm humus or worm manure. It is the end product of the breakdown of organic matter by species of earthworm.
Sewage treatment
It is the process or removing contaminants from waste water, both industrial and domestic. It includes physical, chemicals and biological processes to remove contaminants.
Solar water heater
In order to heat water using solar energy, a collector is fastened to the roof of a building or on a wall facing sun. In some cases, the collector may be tree standing.
Green building
• Eco- friendly paint
• Tiles to facilitate water seepage
• Double layered window glass for insulation
• Temperature control by Evaporating Air Cooling
Water conservation
• Rain water harvesting
• Drip irrigation
• R.O. Plant for purification of water
Garbage reuse & recycling
• Segregation of waste
• Sewage treatment
• Vermicomposting
• Bio gas production
Energy conservation
• Solar water heater
• Solar lights
Reverse osmosis
Reverse osmosis is a separation process that uses pressure to force a solvent through a membrane retains the solute on one side and allows the pure solvent to pass to the other side.
Water conservation
It refers to reducing use of fresh water through technological or social method as goals.
Drip irrigation
Also known as trickle irrigation or micro-irrigation, is an irrigation method that minimize the use of water and fertilizers by allowing water to drip slowly to the roots of the plants.
Bio gas
It typically refers to a gas produced by the anaerobic digestion or fermentation of organic matter including manure, sewage sludge, municipal solid waste, biodegradable waste under anaerobic condition. It is comprised of carbon-dioxide and methane.
Rain water harvesting
Rainfall water harvesting is the term given to the conservation and storage of rainfall on outcrops and sheets of bare rock helping in managing water scarcity.
Vermicompost
Vermicompost is also known worm compost, worm casting, worm humus or worm manure. It is the end product of the breakdown of organic matter by species of earthworm.
Sewage treatment
It is the process or removing contaminants from waste water, both industrial and domestic. It includes physical, chemicals and biological processes to remove contaminants.
Solar water heater
In order to heat water using solar energy, a collector is fastened to the roof of a building or on a wall facing sun. In some cases, the collector may be tree standing.
Green building
• Eco- friendly paint
• Tiles to facilitate water seepage
• Double layered window glass for insulation
• Temperature control by Evaporating Air Cooling
Water conservation
• Rain water harvesting
• Drip irrigation
• R.O. Plant for purification of water
Garbage reuse & recycling
• Segregation of waste
• Sewage treatment
• Vermicomposting
• Bio gas production
Energy conservation
• Solar water heater
• Solar lights
Reverse osmosis is a separation process that uses pressure to force a solvent through a membrane retains the solute on one side and allows the pure solvent to pass to the other side.
Water conservation
It refers to reducing use of fresh water through technological or social method as goals.
Drip irrigation
Also known as trickle irrigation or micro-irrigation, is an irrigation method that minimize the use of water and fertilizers by allowing water to drip slowly to the roots of the plants.
Bio gas
It typically refers to a gas produced by the anaerobic digestion or fermentation of organic matter including manure, sewage sludge, municipal solid waste, biodegradable waste under anaerobic condition. It is comprised of carbon-dioxide and methane.
Rain water harvesting
Rainfall water harvesting is the term given to the conservation and storage of rainfall on outcrops and sheets of bare rock helping in managing water scarcity.
Vermicompost
Vermicompost is also known worm compost, worm casting, worm humus or worm manure. It is the end product of the breakdown of organic matter by species of earthworm.
Sewage treatment
It is the process or removing contaminants from waste water, both industrial and domestic. It includes physical, chemicals and biological processes to remove contaminants.
Solar water heater
In order to heat water using solar energy, a collector is fastened to the roof of a building or on a wall facing sun. In some cases, the collector may be tree standing.
Green building
• Eco- friendly paint
• Tiles to facilitate water seepage
• Double layered window glass for insulation
• Temperature control by Evaporating Air Cooling
Water conservation
• Rain water harvesting
• Drip irrigation
• R.O. Plant for purification of water
Garbage reuse & recycling
• Segregation of waste
• Sewage treatment
• Vermicomposting
• Bio gas production
Energy conservation
• Solar water heater
• Solar lights
Reverse osmosis
Reverse osmosis is a separation process that uses pressure to force a solvent through a membrane retains the solute on one side and allows the pure solvent to pass to the other side.
Water conservation
It refers to reducing use of fresh water through technological or social method as goals.
Drip irrigation
Also known as trickle irrigation or micro-irrigation, is an irrigation method that minimize the use of water and fertilizers by allowing water to drip slowly to the roots of the plants.
Bio gas
It typically refers to a gas produced by the anaerobic digestion or fermentation of organic matter including manure, sewage sludge, municipal solid waste, biodegradable waste under anaerobic condition. It is comprised of carbon-dioxide and methane.
Rain water harvesting
Rainfall water harvesting is the term given to the conservation and storage of rainfall on outcrops and sheets of bare rock helping in managing water scarcity.
Vermicompost
Vermicompost is also known worm compost, worm casting, worm humus or worm manure. It is the end product of the breakdown of organic matter by species of earthworm.
Sewage treatment
It is the process or removing contaminants from waste water, both industrial and domestic. It includes physical, chemicals and biological processes to remove contaminants.
Solar water heater
In order to heat water using solar energy, a collector is fastened to the roof of a building or on a wall facing sun. In some cases, the collector may be tree standing.
Green building
• Eco- friendly paint
• Tiles to facilitate water seepage
• Double layered window glass for insulation
• Temperature control by Evaporating Air Cooling
Water conservation
• Rain water harvesting
• Drip irrigation
• R.O. Plant for purification of water
Garbage reuse & recycling
• Segregation of waste
• Sewage treatment
• Vermicomposting
• Bio gas production
Energy conservation
• Solar water heater
• Solar lights
Reverse osmosis
Reverse osmosis is a separation process that uses pressure to force a solvent through a membrane retains the solute on one side and allows the pure solvent to pass to the other side.
Water conservation
It refers to reducing use of fresh water through technological or social method as goals.
Drip irrigation
Also known as trickle irrigation or micro-irrigation, is an irrigation method that minimize the use of water and fertilizers by allowing water to drip slowly to the roots of the plants.
Bio gas
It typically refers to a gas produced by the anaerobic digestion or fermentation of organic matter including manure, sewage sludge, municipal solid waste, biodegradable waste under anaerobic condition. It is comprised of carbon-dioxide and methane.
Rain water harvesting
Rainfall water harvesting is the term given to the conservation and storage of rainfall on outcrops and sheets of bare rock helping in managing water scarcity.
Vermicompost
Vermicompost is also known worm compost, worm casting, worm humus or worm manure. It is the end product of the breakdown of organic matter by species of earthworm.
Sewage treatment
It is the process or removing contaminants from waste water, both industrial and domestic. It includes physical, chemicals and biological processes to remove contaminants.
Solar water heater
In order to heat water using solar energy, a collector is fastened to the roof of a building or on a wall facing sun. In some cases, the collector may be tree standing.
Green building
• Eco- friendly paint
• Tiles to facilitate water seepage
• Double layered window glass for insulation
• Temperature control by Evaporating Air Cooling
Water conservation
• Rain water harvesting
• Drip irrigation
• R.O. Plant for purification of water
Garbage reuse & recycling
• Segregation of waste
• Sewage treatment
• Vermicomposting
• Bio gas production
Energy conservation
• Solar water heater
• Solar lights
Reverse osmosis
Reverse osmosis is a separation process that uses pressure to force a solvent through a membrane retains the solute on one side and allows the pure solvent to pass to the other side.
Water conservation
It refers to reducing use of fresh water through technological or social method as goals.
Drip irrigation
Also known as trickle irrigation or micro-irrigation, is an irrigation method that minimize the use of water and fertilizers by allowing water to drip slowly to the roots of the plants.
Bio gas
It typically refers to a gas produced by the anaerobic digestion or fermentation of organic matter including manure, sewage sludge, municipal solid waste, biodegradable waste under anaerobic condition. It is comprised of carbon-dioxide and methane.
Rain water harvesting
Rainfall water harvesting is the term given to the conservation and storage of rainfall on outcrops and sheets of bare rock helping in managing water scarcity.
Vermicompost
Vermicompost is also known worm compost, worm casting, worm humus or worm manure. It is the end product of the breakdown of organic matter by species of earthworm.
Sewage treatment
It is the process or removing contaminants from waste water, both industrial and domestic. It includes physical, chemicals and biological processes to remove contaminants.
Solar water heater
In order to heat water using solar energy, a collector is fastened to the roof of a building or on a wall facing sun. In some cases, the collector may be tree standing.
Green building
• Eco- friendly paint
• Tiles to facilitate water seepage
• Double layered window glass for insulation
• Temperature control by Evaporating Air Cooling
Water conservation
• Rain water harvesting
• Drip irrigation
• R.O. Plant for purification of water
Garbage reuse & recycling
• Segregation of waste
• Sewage treatment
• Vermicomposting
• Bio gas production
Energy conservation
• Solar water heater
• Solar lights
Reverse osmosis
Reverse osmosis is a separation process that uses pressure to force a solvent through a membrane retains the solute on one side and allows the pure solvent to pass to the other side.
Water conservation
It refers to reducing use of fresh water through technological or social method as goals.
Drip irrigation
Also known as trickle irrigation or micro-irrigation, is an irrigation method that minimize the use of water and fertilizers by allowing water to drip slowly to the roots of the plants.
Bio gas
It typically refers to a gas produced by the anaerobic digestion or fermentation of organic matter including manure, sewage sludge, municipal solid waste, biodegradable waste under anaerobic condition. It is comprised of carbon-dioxide and methane.
Rain water harvesting
Rainfall water harvesting is the term given to the conservation and storage of rainfall on outcrops and sheets of bare rock helping in managing water scarcity.
Vermicompost
Vermicompost is also known worm compost, worm casting, worm humus or worm manure. It is the end product of the breakdown of organic matter by species of earthworm.
Sewage treatment
It is the process or removing contaminants from waste water, both industrial and domestic. It includes physical, chemicals and biological processes to remove contaminants.
Solar water heater
In order to heat water using solar energy, a collector is fastened to the roof of a building or on a wall facing sun. In some cases, the collector may be tree standing.
Green building
• Eco- friendly paint
• Tiles to facilitate water seepage
• Double layered window glass for insulation
• Temperature control by Evaporating Air Cooling
Water conservation
• Rain water harvesting
• Drip irrigation
• R.O. Plant for purification of water
Garbage reuse & recycling
• Segregation of waste
• Sewage treatment
• Vermicomposting
• Bio gas production
Energy conservation
• Solar water heater
• Solar lights
Reverse osmosis
Reverse osmosis is a separation process that uses pressure to force a solvent through a membrane retains the solute on one side and allows the pure solvent to pass to the other side.
Water conservation
It refers to reducing use of fresh water through technological or social method as goals.
Drip irrigation
Also known as trickle irrigation or micro-irrigation, is an irrigation method that minimize the use of water and fertilizers by allowing water to drip slowly to the roots of the plants.
Bio gas
It typically refers to a gas produced by the anaerobic digestion or fermentation of organic matter including manure, sewage sludge, municipal solid waste, biodegradable waste under anaerobic condition. It is comprised of carbon-dioxide and methane.
Rain water harvesting
Rainfall water harvesting is the term given to the conservation and storage of rainfall on outcrops and sheets of bare rock helping in managing water scarcity.
Vermicompost
Vermicompost is also known worm compost, worm casting, worm humus or worm manure. It is the end product of the breakdown of organic matter by species of earthworm.
Sewage treatment
It is the process or removing contaminants from waste water, both industrial and domestic. It includes physical, chemicals and biological processes to remove contaminants.
Solar water heater
In order to heat water using solar energy, a collector is fastened to the roof of a building or on a wall facing sun. In some cases, the collector may be tree standing.
Green building
• Eco- friendly paint
• Tiles to facilitate water seepage
• Double layered window glass for insulation
• Temperature control by Evaporating Air Cooling
Water conservation
• Rain water harvesting
• Drip irrigation
• R.O. Plant for purification of water
Garbage reuse & recycling
• Segregation of waste
• Sewage treatment
• Vermicomposting
• Bio gas production
Energy conservation
• Solar water heater
• Solar lights
Thursday, 20 September 2007
So what do muscles do?
So what do muscles do?
Muscles move cows, snakes, worms and humans. Muscles move you! Without muscles you couldn't open your mouth, speak, shake hands, walk, talk, or move your food through your digestive system. There would be no smiling, blinking, breathing. You couldn't move anything inside or outside you. The fact is, without muscles, you wouldn't be alive for very long!
Do I have lots of muscles?
Indeed. On average, probably 40% of your body weight is in muscles. You have over 630 muscles that move you. Muscles can't push. They pull. You may ask yourself, if muscles can't push how can you wiggle your fingers in both directions, back and forth, back and forth? The answer? Muscles often work in pairs so that they can pull in different or opposite directions.
How do muscles move?
The cells that make up muscles contract and then relax back to original size. Tiny microscopic fibers in these cells compress by sliding in past each other like a sliding glass door being opened and then shut again. The cells of your muscles use chemical energy from the food you eat to do this. Without food, and particular kinds of nutrients, your muscles wouldn't be able to make the energy to contract!
Some muscles are known as "voluntary" -- that is, they only work when you specifically tell them to. Do you want to say something? Or swing a bat? Or clap your hands? These are voluntary movements. Others, like the muscular contracting of your heart, the movement of your diaphragm so that you can breathe, or blinking your eyes are automatic. They're called involuntary movements. And how do any of these muscles move? Through signals from your nerves, and, in some cases, your brain, as well.
Can you hurt muscles?
Yup. If you hear someone say that they "pulled" a muscle, they have, in fact, torn a muscle in the same way that you can tear a ligament or break a bone. And, like these other living body parts, with a little help, they generally mend themselves.
Factoids
• You have over 30 facial muscles which create looks like surprise, happiness, sadness, and frowning.
• Eye muscles are the busiest muscles in the body. Scientists estimate they may move more than 100,000 times a day!
• The largest muscle in the body is the gluteus maximus muscle in the buttocks.
Muscles move cows, snakes, worms and humans. Muscles move you! Without muscles you couldn't open your mouth, speak, shake hands, walk, talk, or move your food through your digestive system. There would be no smiling, blinking, breathing. You couldn't move anything inside or outside you. The fact is, without muscles, you wouldn't be alive for very long!
Do I have lots of muscles?
Indeed. On average, probably 40% of your body weight is in muscles. You have over 630 muscles that move you. Muscles can't push. They pull. You may ask yourself, if muscles can't push how can you wiggle your fingers in both directions, back and forth, back and forth? The answer? Muscles often work in pairs so that they can pull in different or opposite directions.
How do muscles move?
The cells that make up muscles contract and then relax back to original size. Tiny microscopic fibers in these cells compress by sliding in past each other like a sliding glass door being opened and then shut again. The cells of your muscles use chemical energy from the food you eat to do this. Without food, and particular kinds of nutrients, your muscles wouldn't be able to make the energy to contract!
Some muscles are known as "voluntary" -- that is, they only work when you specifically tell them to. Do you want to say something? Or swing a bat? Or clap your hands? These are voluntary movements. Others, like the muscular contracting of your heart, the movement of your diaphragm so that you can breathe, or blinking your eyes are automatic. They're called involuntary movements. And how do any of these muscles move? Through signals from your nerves, and, in some cases, your brain, as well.
Can you hurt muscles?
Yup. If you hear someone say that they "pulled" a muscle, they have, in fact, torn a muscle in the same way that you can tear a ligament or break a bone. And, like these other living body parts, with a little help, they generally mend themselves.
Factoids
• You have over 30 facial muscles which create looks like surprise, happiness, sadness, and frowning.
• Eye muscles are the busiest muscles in the body. Scientists estimate they may move more than 100,000 times a day!
• The largest muscle in the body is the gluteus maximus muscle in the buttocks.
everybody's blood is not the same
The average adult has about five liters of blood living inside of their body, coursing through their vessels, delivering essential elements, and removing harmful wastes. Without blood, the human body would stop working.
Blood is the fluid of life, transporting oxygen from the lungs to body tissue and carbon dioxide from body tissue to the lungs. Blood is the fluid of growth, transporting nourishment from digestion and hormones from glands throughout the body. Blood is the fluid of health, transporting disease fighting substances to the tissue and waste to the kidneys.
Because it contains living cells, blood is alive. Red blood cells and white blood cells are responsible for nourishing and cleansing the body. Since the cells are alive, they too need nourishment.
Vitamins and Minerals keep the blood healthy. The blood cells have a definite life cycle, just as all living organisms do. Approximately 55 percent of blood is plasma, a straw-colored clear liquid. The liquid plasma carries the solid cells and the platelets which help blood clot. Without blood platelets, you would bleed to death.
When the human body loses a little bit of blood through a minor wound, the platelets cause the blood to clot so that the bleeding stops. Because new blood is always being made inside of your bones, the body can replace the lost blood. When the human body loses a lot of blood through a major wound, that blood has to be replaced through a blood transfusion from other people.
But everybody's blood is not the same. There are four different blood types. Plus, your blood has Rh factors which make it even more unique. Blood received through a transfusion must match your own. Patients who are scheduled to have major surgery make autologous blood donations (donations of their own blood) so that they have a perfect match.
Blood is the fluid of life, transporting oxygen from the lungs to body tissue and carbon dioxide from body tissue to the lungs. Blood is the fluid of growth, transporting nourishment from digestion and hormones from glands throughout the body. Blood is the fluid of health, transporting disease fighting substances to the tissue and waste to the kidneys.
Because it contains living cells, blood is alive. Red blood cells and white blood cells are responsible for nourishing and cleansing the body. Since the cells are alive, they too need nourishment.
Vitamins and Minerals keep the blood healthy. The blood cells have a definite life cycle, just as all living organisms do. Approximately 55 percent of blood is plasma, a straw-colored clear liquid. The liquid plasma carries the solid cells and the platelets which help blood clot. Without blood platelets, you would bleed to death.
When the human body loses a little bit of blood through a minor wound, the platelets cause the blood to clot so that the bleeding stops. Because new blood is always being made inside of your bones, the body can replace the lost blood. When the human body loses a lot of blood through a major wound, that blood has to be replaced through a blood transfusion from other people.
But everybody's blood is not the same. There are four different blood types. Plus, your blood has Rh factors which make it even more unique. Blood received through a transfusion must match your own. Patients who are scheduled to have major surgery make autologous blood donations (donations of their own blood) so that they have a perfect match.
Tuesday, 11 September 2007
Discussion themes for Student
1. Academics :
English: While teaching Translation from English to English is better or English to Hindi?
Hindi: Shouldn't it gain importance much more than a subject?
Maths: Do you think special Maths fun activites be taken up daily?
Should multiplication tables be repeated daily in the last 5 minutes of the Maths period or in the zero period or not?
G.Sc.:How does a Weekly Science quiz idea click for you?
S.St. :Do you think cramming certain History facts( not all) can be avoided if there is a thoughtful review of the relevance?
Sanskrit:How much relevant it is in contemporary education system?
etc.
2. Discipline: Self discipline or the imposed one?
3. Behavior: With fellow students, with the teachers, with the parents, in the society etc.
4. Student Teacher relation: Friendly or the one which keeps students at a distance with the teachers…..idea of their choice
.
5. Activity oriented teaching: Is it good or a waste of time? , Do they like the topic to be started with an activity or should related activities be taken up at the end of the lesson?, etc.
6. Modes of Testing and examination: Unit wise or term wise?, Marks or grades? Typical type of closed book testing or Open book test? etc.
7. Social issues: How Civic sense can be developed at the school level among the students?. etc.
8. Involvement of students at the planning level with the teachers: Should it be considered by the school administration? If yes, why?
9. Student Elections for the prefectorial board: How should the student elections be conducted? , Is voting by students a good idea or not? What should be the criteria of nominations for the election of prefectorial board ….Top rank holders only or the ones with other needed qualities should also be given a chance?
10. Environment awareness: Is Global warming a global concern? , How do you think the monster of pollution should be defeated? , Waste management in the school, How can the Noise level in the school be reduced? And so on.
English: While teaching Translation from English to English is better or English to Hindi?
Hindi: Shouldn't it gain importance much more than a subject?
Maths: Do you think special Maths fun activites be taken up daily?
Should multiplication tables be repeated daily in the last 5 minutes of the Maths period or in the zero period or not?
G.Sc.:How does a Weekly Science quiz idea click for you?
S.St. :Do you think cramming certain History facts( not all) can be avoided if there is a thoughtful review of the relevance?
Sanskrit:How much relevant it is in contemporary education system?
etc.
2. Discipline: Self discipline or the imposed one?
3. Behavior: With fellow students, with the teachers, with the parents, in the society etc.
4. Student Teacher relation: Friendly or the one which keeps students at a distance with the teachers…..idea of their choice
.
5. Activity oriented teaching: Is it good or a waste of time? , Do they like the topic to be started with an activity or should related activities be taken up at the end of the lesson?, etc.
6. Modes of Testing and examination: Unit wise or term wise?, Marks or grades? Typical type of closed book testing or Open book test? etc.
7. Social issues: How Civic sense can be developed at the school level among the students?. etc.
8. Involvement of students at the planning level with the teachers: Should it be considered by the school administration? If yes, why?
9. Student Elections for the prefectorial board: How should the student elections be conducted? , Is voting by students a good idea or not? What should be the criteria of nominations for the election of prefectorial board ….Top rank holders only or the ones with other needed qualities should also be given a chance?
10. Environment awareness: Is Global warming a global concern? , How do you think the monster of pollution should be defeated? , Waste management in the school, How can the Noise level in the school be reduced? And so on.
Monday, 10 September 2007
choice OF professional courses by the students OF today!
most of the students are now opting for such courses which are profession oriented, or are the ones which can yield good grades .They prefer PCM over PCB for this reason.
Their first preference ,if they are good at studies is Engineering line which has diversification of Computer Engineering, Civil Engineering, Electrical Engineering, and so on. Everybody wants a quick professional settlement these days.
Earlier medical and Engineering were the two mega choices for the students, no doubt even till date that’s true. But, there has evolved a new thought line now, that in Medical too much time is needed to complete the course, internship and settlement of practice. While in Engineering one is sure to get a job opportunity sooner. This is what we have found when we talk to the students regarding their choice of subjects.
Now a days they join graduation or post graduation courses only if no other professional course choice is left for them.
I think this should be seriously thought and reviewed.
Their first preference ,if they are good at studies is Engineering line which has diversification of Computer Engineering, Civil Engineering, Electrical Engineering, and so on. Everybody wants a quick professional settlement these days.
Earlier medical and Engineering were the two mega choices for the students, no doubt even till date that’s true. But, there has evolved a new thought line now, that in Medical too much time is needed to complete the course, internship and settlement of practice. While in Engineering one is sure to get a job opportunity sooner. This is what we have found when we talk to the students regarding their choice of subjects.
Now a days they join graduation or post graduation courses only if no other professional course choice is left for them.
I think this should be seriously thought and reviewed.
we need to have a mastery of both languages
I think the demand of using English language as a tool of communication at the “global village” scenario and the demand of emphasizing our National language to carry forward our rich cultural heritage , to have an original expression of thoughts and ideas and to aid in perfect understanding of the knowledge…….. both are equally important. This fact can not be denied by anyone.
Here our role as a good teacher comes into the play. Whatever subject we are teaching, whichever class we are teaching, its our duty to clarify student minds in this regard. We must accept the fact that we need to have a mastery of both languages and respect “all languages” which are an ultimate tool of the human expression, although even the deaf and dumb too have a perfect expression and communicate well.
It’s only then that we can fit perfectly in the present scenario.
Here our role as a good teacher comes into the play. Whatever subject we are teaching, whichever class we are teaching, its our duty to clarify student minds in this regard. We must accept the fact that we need to have a mastery of both languages and respect “all languages” which are an ultimate tool of the human expression, although even the deaf and dumb too have a perfect expression and communicate well.
It’s only then that we can fit perfectly in the present scenario.
An excellent Talent Show presntation
An excellent Talent Show presentation was performed by Class VI H on
10th September .
All the items were marked with perfection and enthusiasm of the participants especially the mega-item "ABHIYAAN" in which the whole class joined together in the call of Abhiyaan spreading messages of importance.
At the end ,the matter of delight was that the judges too got up and joined the event and there was a small "go-around event" with everybody joining hands and singing..............
Ek tab ABHIYAAN chalaya tha
Ek ab ABHIYAAN chalana hai.
10th September .
All the items were marked with perfection and enthusiasm of the participants especially the mega-item "ABHIYAAN" in which the whole class joined together in the call of Abhiyaan spreading messages of importance.
At the end ,the matter of delight was that the judges too got up and joined the event and there was a small "go-around event" with everybody joining hands and singing..............
Ek tab ABHIYAAN chalaya tha
Ek ab ABHIYAAN chalana hai.
Sunday, 9 September 2007
Talent Show of Class VI H
Talent Show of Class VI H is going to be a great success,in fact a bang!!!!!!!!
All students are participating in different program items like short skits,poem recitation,Talks,Dances.Singing,hobby corner,fancy dress show etc.The students are too much enthusiastic to perform.
All students are participating in different program items like short skits,poem recitation,Talks,Dances.Singing,hobby corner,fancy dress show etc.The students are too much enthusiastic to perform.
celebration of teacher's day at Kulachi
Today we had celebration of teacher's day at Kulachi and I feel happy to announce that my school has won the best school trophy of the zone.
We had a wonderful presentation by Music department and also a "Nukkad Natak" by teachers giving a message of "saving future".
We all remembered Dr. Radhakrishnan and thanked him for giving so much importance to our profession that he declared his birthday as the
"Teachers Day".
We teachers must raise ourselves to the level of selfless service of the humanity by nurturing the future citizens of the nation whole-heartedly.
We had a wonderful presentation by Music department and also a "Nukkad Natak" by teachers giving a message of "saving future".
We all remembered Dr. Radhakrishnan and thanked him for giving so much importance to our profession that he declared his birthday as the
"Teachers Day".
We teachers must raise ourselves to the level of selfless service of the humanity by nurturing the future citizens of the nation whole-heartedly.
Friday, 24 August 2007
A poem by Manmeet Kaur VI H
I WANT TO BE A SCIENTIST
I want to be a scientist
I want to own a lab
I want to be a specialist
You might think i'm mad
I want to use a laser beam
I want to win awards
I want to measure gravity
And study different laws
I don't want to be a circus clown
I don't want to be a nurse
I don't want to be a undertaker
And drive around in a he arse
I don't want to be a fireman
And battle fires all day
I want to be a scientist
A scientist of today !
I want to be a scientist
I want to own a lab
I want to be a specialist
You might think i'm mad
I want to use a laser beam
I want to win awards
I want to measure gravity
And study different laws
I don't want to be a circus clown
I don't want to be a nurse
I don't want to be a undertaker
And drive around in a he arse
I don't want to be a fireman
And battle fires all day
I want to be a scientist
A scientist of today !
Thursday, 23 August 2007
Wednesday, 15 August 2007
The beauty of symmetry in nature
Can you think of at least 5 more examples of symmetry in nature?
• Look at your own reflection in the mirror. You and your reflection are mirror images of each other. The mirror is called the line of symmetry.
• Choose a symmetrical object you like. On graph paper, draw a vertical line of symmetry, and then try to draw one half of your object. When you are finished, place a mirror on your line of symmetry and see if you get a complete figure.
Tuesday, 14 August 2007
Thursday, 9 August 2007
guidelines
exam tips
1. Divide a chapter into smaller parts.
2. Prepare a revision time table.
3. Revise the difficult topics when your mind is fresh. Do not postpone the difficult topics.
4. Prepare short diagrams/mind maps for the end time revision.
5. Do not just read. Learn by writing. Practice the difficult questions.
6. Divide a question into steps. Try to remember the general methods.
7. Learn the statements of the theorems by writing.
8. Take a break after every 40 minutes of study.
9. Plan the syllabus according to time.
10. Eat well and sleep well.
11. On the examination day, do not worry, even if you feel that you remember nothing! Give it your best shot, you will be able to recall once the questions are in front of you.
12. Answer all questions. Put the correct question number.
13.Leave some space after each question.
14. Read the instructions on your exam paper and if you are unsure about anything, don’t hesitate to ask the invigilator .
15. Don’t waste time. If you get stuck on a question because it seems difficult or confusing, move on to the next and return to the tough questions after.
1. Divide a chapter into smaller parts.
2. Prepare a revision time table.
3. Revise the difficult topics when your mind is fresh. Do not postpone the difficult topics.
4. Prepare short diagrams/mind maps for the end time revision.
5. Do not just read. Learn by writing. Practice the difficult questions.
6. Divide a question into steps. Try to remember the general methods.
7. Learn the statements of the theorems by writing.
8. Take a break after every 40 minutes of study.
9. Plan the syllabus according to time.
10. Eat well and sleep well.
11. On the examination day, do not worry, even if you feel that you remember nothing! Give it your best shot, you will be able to recall once the questions are in front of you.
12. Answer all questions. Put the correct question number.
13.Leave some space after each question.
14. Read the instructions on your exam paper and if you are unsure about anything, don’t hesitate to ask the invigilator .
15. Don’t waste time. If you get stuck on a question because it seems difficult or confusing, move on to the next and return to the tough questions after.
Sunday, 5 August 2007
Plant a tree
Plant a tree
A single tree will absorb one ton of carbon dioxide over its lifetime. Shade provided by trees can also reduce your air conditioning bill by 10 to 15%.
A single tree will absorb one ton of carbon dioxide over its lifetime. Shade provided by trees can also reduce your air conditioning bill by 10 to 15%.
JOINING OUR HANDS TOGETHER
LET US ALL CELEBRATE VAN MAHOTSAVA
BY ADOPTING A PLANT
AND TAKING CARE OF IT ALL THE TIME!
AND ALSO TAKE A PLEDGE TO
PROTECT THE PLANET EARTH
BY JOINING OUR HANDS TOGETHER.
Monday, 30 July 2007
Alphabets in nature Unusual quest
On Nov. 16, 2005............................
Kjell Sandved was sitting on a tree branch in Panama when he found himself staring into the face of a viper. The poisonous snake had coiled its body a few times around a nearby branch. Its neck rested on the coils.
"Its head," Sandved says, "was sticking out and looking at me."
Instead of reacting with terror and panic, like most people would, Sandved noticed something remarkable. Resting in this position, the snake looked like the letter "Q."
It wasn't the first letter of the alphabet that Sandved had picked out while observing nature. In 1975, the talented photographer had published a poster displaying every letter in the alphabet, each one found somewhere on the wings of butterflies and moths. Later, he finished a colorful collection of letters, numbers, and symbols found throughout the natural world. Completing both alphabets consumed him for 24 years.
Now 83 years old, Sandved has continued his quest. Recent photographs include patterns that resemble faces, eyes, ampersands, the Greek letter pi, and the shapes of cats and mice.
What Comets Are Made Of
Astronomers are watching a comet break into pieces, practically before their eyes. Their observations, reported by scientists at Johns Hopkins University's Applied Physics Laboratory in Laurel, Md., are giving surprising insight into the structure of these space objects.
Comets are fairly small (about 12 miles across or less) balls of ice, rock, and dust that make long, noncircular orbits around the sun. When a comet gets near the sun, the star's heat melts some of it, creating what looks like a tail. At this stage, it looks somewhat like a tadpole.
Comets sometimes burst into pieces when the sun's heat turns their ice into water vapor. By studying these chunks, astronomers can compare the material at the center of a comet with material at its surface.
The scientists expected that a comet's center would look different from its surface. That's because comets probably formed at the same time as the solar system, so the material at the center has probably remained unchanged for just as long. The surface material, on the other hand, is changed by the sun's radiation.
For the new study, the Johns Hopkins team observed the breakup of a comet called 73P/Schwassmann-Wachmann 3 (SW3). The comet orbits the sun every 5.34 years.
In 1995, SW3 split into at least five chunks. In June 2006, it passed within a relatively close 11.7 million kilometers (7.3 million miles) of Earth. Around that time, it disintegrated even more. Scientists counted 68 fragments.
The two largest chunks are called B and C. Each is several hundred meters wide. The scientists studied both chunks using NASA's Infrared Telescope Facility and the Keck II telescope, both on Hawaii's Mauna Kea. The researchers found that B and C have nearly identical compositions, with the same proportions of substances such as water and carbon dioxide.
Those results suggest that comets have maintained more of their original form than scientists had expected. "We were really lucky" that the comet came close enough for astronomers to make observations soon after a breakup, says lead researcher Neil Dello Russo.
Because this was the first study of its kind, the scientists don't yet know whether all comets are the same, inside and out
Sunday, 29 July 2007
Alternative Fuel Vehicles (AFVs)
Interest in vehicles powered by alternative energy sources has been gaining traction in large part due to high gas prices and an increased awareness of global warming, which according to a recent Intergovernmental Panel on Climate Change (IPCC) report[1] is 90% likely caused by humans. The "fuel" is the set of chemicals which are oxidized and reduced to release the stored energy. In a battery or fuel cell powered vehicle, this is electricity. In some circumstances, however, electricity may be provided directly to a mobile electric engine, such as an electrified trolley or train, or a magnetically levitated train. In such cases, electricity itself may be treated as an alternative "fuel", since it replaces fuel energy used in transportation.
Diesel type biofuels
Hempseed oil fuel or other straight vegetable oils
Biodiesel
Biodiesel refers to a diesel-equivalent processed fuel derived from biological sources (such as vegetable oils) which can be used in unmodified diesel-engine vehicles. It is thus distinguished from the straight vegetable oils (SVO) or waste vegetable oils (WVO) used as fuels in some diesel vehicles.
Diesel type biofuels
Hempseed oil fuel or other straight vegetable oils
Biodiesel
Biodiesel refers to a diesel-equivalent processed fuel derived from biological sources (such as vegetable oils) which can be used in unmodified diesel-engine vehicles. It is thus distinguished from the straight vegetable oils (SVO) or waste vegetable oils (WVO) used as fuels in some diesel vehicles.
Alternatives to petroleum-based vehicle fuels
Demand for Alternative Fuels
In the year 2000, there were about eight million vehicles around the world that ran on alternative fuels, indicating an increasing popularity of alternative fuels[citation needed]. There is growing social interest, and a perceived economic and political need for the development of alternative fuel sources. This is due to general environmental, economic, and geopolitical concerns of sustainability.
The major environmental concern, according to an IPCC report, is that "Most of the observed increase in globally averaged temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic greenhouse gas concentrations" [1]. Since burning fossil fuels are known to increase greenhouse gas concentrations in the atmosphere, they are a likely contributor to global warming.
The main purpose of fuel is to store energy in a form that is stable and can be easily transported from the place of production to the end user which helps in many ways such as transportation. Almost all fuels are chemical fuels, that store chemical potential energy. The end user is then able to consume the fuel at will, and release energy, usually in the form of heat for a variety of applications, such as powering an engine, or heating a building, such as a home.
The definition of Alternative Fuel varies according to the context of its usage. In the context of petroleum substitutes, the term 'alternative fuel' can imply any available fuel or energy source, and does not necessarily refer to a source of renewable energy. In the context of environmental sustainability, 'alternative fuel' often implies an ecologically benign renewable fuel.
Alternative Fuels, also known as non-conventional fuels, are any materials or substances that can be used as a fuel, other than conventional fuels. Conventional fuels include: fossil fuels (petroleum (oil), coal, propane, and natural gas), and also in some instances nuclear materials such as uranium. Some well known alternative fuels include biodiesel, ethanol, butanol, chemically stored electricity (batteries and fuel cells), hydrogen, methane, natural gas, vegetable oil, biomass, and peanut oil.
In the year 2000, there were about eight million vehicles around the world that ran on alternative fuels, indicating an increasing popularity of alternative fuels[citation needed]. There is growing social interest, and a perceived economic and political need for the development of alternative fuel sources. This is due to general environmental, economic, and geopolitical concerns of sustainability.
The major environmental concern, according to an IPCC report, is that "Most of the observed increase in globally averaged temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic greenhouse gas concentrations" [1]. Since burning fossil fuels are known to increase greenhouse gas concentrations in the atmosphere, they are a likely contributor to global warming.
The main purpose of fuel is to store energy in a form that is stable and can be easily transported from the place of production to the end user which helps in many ways such as transportation. Almost all fuels are chemical fuels, that store chemical potential energy. The end user is then able to consume the fuel at will, and release energy, usually in the form of heat for a variety of applications, such as powering an engine, or heating a building, such as a home.
The definition of Alternative Fuel varies according to the context of its usage. In the context of petroleum substitutes, the term 'alternative fuel' can imply any available fuel or energy source, and does not necessarily refer to a source of renewable energy. In the context of environmental sustainability, 'alternative fuel' often implies an ecologically benign renewable fuel.
Alternative Fuels, also known as non-conventional fuels, are any materials or substances that can be used as a fuel, other than conventional fuels. Conventional fuels include: fossil fuels (petroleum (oil), coal, propane, and natural gas), and also in some instances nuclear materials such as uranium. Some well known alternative fuels include biodiesel, ethanol, butanol, chemically stored electricity (batteries and fuel cells), hydrogen, methane, natural gas, vegetable oil, biomass, and peanut oil.
Global warming
Burning oil releases carbon dioxide into the atmosphere, which contributes to global warming. Per energy unit, oil produces less CO2 than coal, but more than natural gas. However, oil's unique role as a transportation fuel makes reducing its CO2 emissions a particularly thorny problem; amelioration strategies such as carbon sequestering are generally geared for large power plants, not individual vehicles.
Environmental effects of petroleum
Environmental effects
Diesel fuel spill on a roadThe presence of oil has significant social and environmental impacts, from accidents and routine activities such as seismic exploration, drilling, and generation of polluting wastes no produced by other alternative energies.
[edit] Extraction
Oil extraction is costly and sometimes environmentally damaging, although Dr. John Hunt of the Woods Hole Oceanographic Institution pointed out in a 1981 paper that over 70% of the reserves in the world are associated with visible macroseepages, and many oil fields are found due to natural leaks. Offshore exploration and extraction of oil disturbs the surrounding marine environment.[13] But at the same time, offshore oil platforms also form micro-habitats for marine creatures. Extraction may involve dredging, which stirs up the seabed, killing the sea plants that marine creatures need to survive.
[edit] Oil spills
Volunteers cleaning up the aftermath of the Prestige oil spillCrude oil and refined fuel spills from tanker ship accidents have damaged natural ecosystems in Alaska, the Galapagos Islands , and many other places and plural times in Spain (i.e. Ibiza).
Fuels
Ethane and other short-chain alkanes which are used as fuel
Diesel fuel
Fuel oils
Gasoline
Jet fuel
Kerosene
Liquid petroleum gas (LPG)
Petroleum (Latin Petroleum derived from Greek πέτρα (Latin petra) - rock + έλαιον (Latin oleum) - oil) or crude oil is a naturally occurring liquid found in formations in the Earth consisting of a complex mixture of hydrocarbons (mostly alkanes) of various lengths.
The most common method of obtaining petroleum is extracting it from oil wells found in oil fields. After the well has been located, various methods are used to recover the petroleum. Primary recovery methods are used to extract oil that is brought to the surface by underground pressure, and can generally recover about 20% of the oil present. After the oil pressure has depleted to the point that the oil is no longer brought to the surface, secondary recovery methods draw another 5 to 10% of the oil in the well to the surface. Finally, when secondary oil recovery methods are no longer viable, tertiary recovery methods reduce the viscosity of the oil in order to bring more to the surface.
Other derivatives
Certain types of resultant hydrocarbons may be mixed with other non-hydrocarbons, to create other end products:
Alkenes (olefins) which can be manufactured into plastics or other compounds
Lubricants (produces light machine oils, motor oils, and greases, adding viscosity stabilizers as required).
Wax, used in the packaging of frozen foods, among others.
Sulfur or Sulfuric acid. These are a useful industrial materials. Sulfuric acid is usually prepared as the acid precursor oleum, a byproduct of sulfur removal from fuels.
Bulk tar.
Asphalt
Petroleum coke, used in speciality carbon products or as solid fuel.
Paraffin wax
Aromatic petrochemicals to be used as precursors in other chemical production.
Ethane and other short-chain alkanes which are used as fuel
Diesel fuel
Fuel oils
Gasoline
Jet fuel
Kerosene
Liquid petroleum gas (LPG)
Petroleum (Latin Petroleum derived from Greek πέτρα (Latin petra) - rock + έλαιον (Latin oleum) - oil) or crude oil is a naturally occurring liquid found in formations in the Earth consisting of a complex mixture of hydrocarbons (mostly alkanes) of various lengths.
The most common method of obtaining petroleum is extracting it from oil wells found in oil fields. After the well has been located, various methods are used to recover the petroleum. Primary recovery methods are used to extract oil that is brought to the surface by underground pressure, and can generally recover about 20% of the oil present. After the oil pressure has depleted to the point that the oil is no longer brought to the surface, secondary recovery methods draw another 5 to 10% of the oil in the well to the surface. Finally, when secondary oil recovery methods are no longer viable, tertiary recovery methods reduce the viscosity of the oil in order to bring more to the surface.
Other derivatives
Certain types of resultant hydrocarbons may be mixed with other non-hydrocarbons, to create other end products:
Alkenes (olefins) which can be manufactured into plastics or other compounds
Lubricants (produces light machine oils, motor oils, and greases, adding viscosity stabilizers as required).
Wax, used in the packaging of frozen foods, among others.
Sulfur or Sulfuric acid. These are a useful industrial materials. Sulfuric acid is usually prepared as the acid precursor oleum, a byproduct of sulfur removal from fuels.
Bulk tar.
Asphalt
Petroleum coke, used in speciality carbon products or as solid fuel.
Paraffin wax
Aromatic petrochemicals to be used as precursors in other chemical production.
age of the Earth
Modern geologists consider the age of the Earth to be around 4.54 billion years (4.54×109 years).[1] This age represents a compromise between the interpretations of oldest-known terrestrial minerals – small crystals of zircon from the Jack Hills of Western Australia – and astronomers' and planetologists' determinations of the age of the solar system based in part on radiometric age dating of meteorite material and lunar samples.
Interpretation of radiometric age dating of zircons suggests that the Earth is at least 4.404 billion years old. Comparing the mass and luminosity of the Sun to the multitudes of other stars, it appears that the solar system cannot be much older than those rocks. Ca-Al-rich inclusions (inclusions rich in calcium and aluminium) – the oldest known solid constituents within meteorites which are formed within the solar system – are 4.567 billion years old, giving an age for the solar system and an upper limit for the age of the Earth. It is assumed that the accretion of the Earth began soon after the formation of the Ca-Al-rich inclusions and the meteorites. Because the exact accretion time of the Earth is not yet known, and the predictions from different accretion models vary from several millions up to about 100 million years, the exact age of the Earth is difficult to determine.
Interpretation of radiometric age dating of zircons suggests that the Earth is at least 4.404 billion years old. Comparing the mass and luminosity of the Sun to the multitudes of other stars, it appears that the solar system cannot be much older than those rocks. Ca-Al-rich inclusions (inclusions rich in calcium and aluminium) – the oldest known solid constituents within meteorites which are formed within the solar system – are 4.567 billion years old, giving an age for the solar system and an upper limit for the age of the Earth. It is assumed that the accretion of the Earth began soon after the formation of the Ca-Al-rich inclusions and the meteorites. Because the exact accretion time of the Earth is not yet known, and the predictions from different accretion models vary from several millions up to about 100 million years, the exact age of the Earth is difficult to determine.
India on the global education map
Saturday, July 28, 2007
12:59 IST
In the years from 5th-13th century AD, eastern India's ancient university of Nalanda was home to foreign students from as far away as China. Thousands of years later, history spills over to the modern-day Indian nation that continues the tradition of being a centre of educational excellence and a lodestone for students from all over the world.
Sixty years after it attained independence, India boasts of 310 universities and 16,000 colleges offering the widest spectrum of courses. Its centres of higher learning like the Indian Institutes of Management (IIMs) and the Indian Institutes of Technology (IITs) are global brandnames.
Adding to the quality of education is the fact that English is the generally accepted mode of teaching and living standards are economical - attracting thousands of students from at least 100 countries.
A large number of students come to India from countries like Afghanistan, Bangladesh, Bhutan, Ethiopia, Fiji, Iran, Iraq, Japan, Jordan, Kenya, Ghana, Lebanon, Madagascar, Malaysia, Mauritius, Myanmar, Nepal, Somalia, Sri Lanka, Suriname, Syria and even the US.
"They (the global populace) look at the Indian education system with trust," said Educational Consultants India Limited (Ed. CIL), a body under the Human Resource Development (HRD) ministry.
"India is today recognised as a world centre for education. Indian entrepreneurs are making waves throughout the world. Their ideas, technical knowledge and entrepreneurship have yielded unprecedented growth in income, employment and wealth. The credit goes to the sound and practical educational foundation they have received in India," they said.
It's a rapidly increasing phenomenon.
A case in point is southern Karnataka's Mysore University where at least 1,200 foreign students study, up from only 150 four years ago.
Vice Chancellor J. Shashidhara Prasad attributes the spurt to the IT revolution and India's economy that is growing at over nine percent.
"The quality education provided by many universities in our country is increasingly getting noticed. When I became the vice chancellor, there were around 150 foreign students. The trend is growing."
Of course, it's a lot to do with the arithmetic of education as well.
The Mysore University, for instance, offers an MBA degree for Rs.150,000 (approx $3,750) as against $12,000 to $15,000 in Europe, Australia or in the US.
Director of the prestigious IIM-Ahmedabad Bakul H. Dholakia disclosed that his institute had student exchange programmes with 50 others in the world.
"Yes, India is becoming a global destination of education. Our education is at par with any major institute of the world. Our students are increasingly getting global attention and job offers and this is a good yardstick of our quality.
"Currently, IIM-A has student exchange programmes with exactly 50 institutes across the continents. Some students stay in our campus to pursue a fulltime one-year MBA programme. India is progressing and there is no full stop," Dholakia said.
Tyler William Walker from the US perhaps best represents the trend of students from a developed country opting for India.
Walker, who is doing his M.Phil in Hindi from New Delhi's Jawaharlal Nehru University (JNU), said: "I came to India first as an exchange student during my stint at California University and then joined JNU for a full time course in Hindi. While students from developing countries come to India to get quality education because it costs less, students from developed nations come for variety."
Williams, who is vice president of the university's student union, is only one of eight American students in JNU.
"The culture, the languages and even the social set up of India attract students here," he said, adding that there were only two students from the US three years ago.
For Shadi Sarrokhyani from Iran, who is doing her PhD in English Literature from JNU, the Indian experience is "amazing".
"India's quality of education and relatively cheap costs not to mention the secure socio political situation in the country are the primary reasons for an increasing number of students coming to India," she said.
"I have been in India for more than seven years and it has been a unique experience. The democratic way of living and the rich culture of the country have helped us cope with the course curriculum," said the student, who came to India through a scholarship provided by the India Council of Cultural Relations (ICCR).
Though she applied through the Indian embassy in Tehran, Shadi said many in her country were paying their way through and JNU alone had 30 students from Iran.
Added Tasazul Ali from Syria, who has been in the Indian capital for the last two years pursuing a Masters in Computer Application (MCA) at the Jamia Hamdard University: "Some of my friends were studying here and they told me about the facilities available. I came to India on their recommendation and I am very impressed."
Khalid Abdallah from Sudan who has pursued various degrees from various universities in India estimates that there are around 3,000 students from his country in Hyderabad, 800 in Pune, 400 in Bangalore and 200 in Chennai.
ED.CIL said the global recognition of Indian education is helping the cause of Indian students as well. "The courses and professionals trained in Indian educational institutes are recognised the world over - 200 of the Fortune 500 companies regularly participate in campus placements in Indian institutions," the body said.
Friday, 20 July 2007
Thursday, 19 July 2007
Tuesday, 17 July 2007
Yesterday and today A poem by Vasu Mittal VI H
just yesterday it seems,
the fields were full of grains,
just yesterday,the water,
came from heaven,
and the earth was not a thirsty,
but yesterday is five years gone,
and today is nought but rubble,
a wilderness of earth,
baked brown by the relentess,
desert sun..............................
the fields were full of grains,
just yesterday,the water,
came from heaven,
and the earth was not a thirsty,
but yesterday is five years gone,
and today is nought but rubble,
a wilderness of earth,
baked brown by the relentess,
desert sun..............................
Manmeet Kaur's poem
IT'S CHANGE
Mum i don't want to go to school today,
cause i fear our world is in decay.
I feel my teachers are part of the plot,
I'm the only one who sees through the rot.
Scientists are cloning pigs & sheep,
saying it's change-a quantum leap.
Biologists are making stem cells grow,
saying it's change - the way to go.
Geologists are finding cracks in our earth,
saying it's change - predicting it's birth.
Archaeologists are digging up fossils & bones,
saying it's change - time for clones.
Yes, scientists are causing me great concern,
giving us kids much to learn.
Mum i don't want to go to school today,
cause i fear our world is in decay.
I feel my teachers are part of the plot,
I'm the only one who sees through the rot.
Scientists are cloning pigs & sheep,
saying it's change-a quantum leap.
Biologists are making stem cells grow,
saying it's change - the way to go.
Geologists are finding cracks in our earth,
saying it's change - predicting it's birth.
Archaeologists are digging up fossils & bones,
saying it's change - time for clones.
Yes, scientists are causing me great concern,
giving us kids much to learn.
A poem by Megha Panjwani
Save the Environment
Save the environment,
To save yourself,
It is waste management,
That needs many arrangements.
Dispose all the waste,
To keep ourselves safe,
Use the twin-bins,
Which helps the cleanliness to win.
Keep the environment clean,
Think for the environment, what are you being,
Solid, Liquid & Gaseous wastes,
Make the environment so dirty.
We should take some safety measures,
To keep ourselves away from all the cunning garbage,
This waste management gives us the lesson of cleaning,
Makes our habit of daily cleaning.
Waste management is the part of environment,
It is stored inside the garbage department,
We have many duties for saving this green world,
We should follow each and control the extinction.
Waste management has a concept of garbage,
Explains the whole waste management package,
So this was the whole waste management and some safety arrangements,
So let’s start saving the precious environment.
Save the environment,
Save the environment……………..
Save the environment,
To save yourself,
It is waste management,
That needs many arrangements.
Dispose all the waste,
To keep ourselves safe,
Use the twin-bins,
Which helps the cleanliness to win.
Keep the environment clean,
Think for the environment, what are you being,
Solid, Liquid & Gaseous wastes,
Make the environment so dirty.
We should take some safety measures,
To keep ourselves away from all the cunning garbage,
This waste management gives us the lesson of cleaning,
Makes our habit of daily cleaning.
Waste management is the part of environment,
It is stored inside the garbage department,
We have many duties for saving this green world,
We should follow each and control the extinction.
Waste management has a concept of garbage,
Explains the whole waste management package,
So this was the whole waste management and some safety arrangements,
So let’s start saving the precious environment.
Save the environment,
Save the environment……………..
Sunday, 15 July 2007
weight management for kids
Health and Fitness Management for the students
A few guidelines by a science teacher!
At breakfast always offer some fruit with breakfast cereals or offer diluted fruit juice as a drink.
With cooked breakfasts include some mushrooms, tomatoes or baked beans.
Always offer at least one vegetable and one fruit at lunch and supper.
Crunchy raw vegetables such as carrot sticks and cucumber slices are popular in lunch boxes and with cold meals.
For simple puddings, serve fruit with yogurt, custard or ice cream.
Younger children often eat more fruit when it is cut up for them.
Choose cooked puddings containing fruit, eg fruit crumbles, tarts and souffles.
If serving cake or biscuits always serve them with some pieces of fruit Drinks.
Milk and water are the best drinks for children as they do not damage teeth.
Fruit juices are acidic and, although they provide nutrients, they can damage tooth enamel when offered between meals. Offer them well diluted at meal times to avoid this.
Sugary, fizzy drinks and squashes are also acidic and give calories but virtually no nutrients. Given frequently between meals they cause tooth decay.
Children’s appeHealth and Fitness Management for the students
A few guidelines by a science teacher!
At breakfast always offer some fruit with breakfast cereals or offer diluted fruit juice as a drink.
With cooked breakfasts include some mushrooms, tomatoes or baked beans.
Always offer at least one vegetable and one fruit at lunch and supper.
Crunchy raw vegetables such as carrot sticks and cucumber slices are popular in lunch boxes and with cold meals.
For simple puddings, serve fruit with yogurt, custard or ice cream.
Younger children often eat more fruit when it is cut up for them.
Choose cooked puddings containing fruit, eg fruit crumbles, tarts and souffles.
If serving cake or biscuits always serve them with some pieces of fruit Drinks.
Milk and water are the best drinks for children as they do not damage teeth.
Fruit juices are acidic and, although they provide nutrients, they can damage tooth enamel when offered between meals. Offer them well diluted at meal times to avoid this.
Sugary, fizzy drinks and squashes are also acidic and give calories but virtually no nutrients. Given frequently between meals they cause tooth decay.
Children’s appetites vary from day to day depending on how they feel and how active they are so keep an open mind on how much they will eat. Let them decide.Always offer 2 courses at lunch and supper – a savoury course and a pudding. This gives 2 opportunities for children to eat nutritious foods.
Children eat better when there is a routine of 3 meals with 1 or 2 nutritious snacks each day. Do not allow grazing on food throughout the day. It is important for children to feel hungry before a meal and then learn that feeling of having had enough and not needing any more.
Many overweight children have no idea when they feel comfortably full as they tend to graze on snacks throughout the day and have little experience of when they are hungry and when they are not. tites vary from day to day depending on how they feel and how active they are so keep an open mind on how much they will eat. Let them decide.Always offer 2 courses at lunch and supper – a savoury course and a pudding. This gives 2 opportunities for children to eat nutritious foods.
Children eat better when there is a routine of 3 meals with 1 or 2 nutritious snacks each day. Do not allow grazing on food throughout the day. It is important for children to feel hungry before a meal and then learn that feeling of having had enough and not needing any more.
Many overweight children have no idea when they feel comfortably full as they tend to graze on snacks throughout the day and have little experience of when they are hungry and when they are not.
A few guidelines by a science teacher!
At breakfast always offer some fruit with breakfast cereals or offer diluted fruit juice as a drink.
With cooked breakfasts include some mushrooms, tomatoes or baked beans.
Always offer at least one vegetable and one fruit at lunch and supper.
Crunchy raw vegetables such as carrot sticks and cucumber slices are popular in lunch boxes and with cold meals.
For simple puddings, serve fruit with yogurt, custard or ice cream.
Younger children often eat more fruit when it is cut up for them.
Choose cooked puddings containing fruit, eg fruit crumbles, tarts and souffles.
If serving cake or biscuits always serve them with some pieces of fruit Drinks.
Milk and water are the best drinks for children as they do not damage teeth.
Fruit juices are acidic and, although they provide nutrients, they can damage tooth enamel when offered between meals. Offer them well diluted at meal times to avoid this.
Sugary, fizzy drinks and squashes are also acidic and give calories but virtually no nutrients. Given frequently between meals they cause tooth decay.
Children’s appeHealth and Fitness Management for the students
A few guidelines by a science teacher!
At breakfast always offer some fruit with breakfast cereals or offer diluted fruit juice as a drink.
With cooked breakfasts include some mushrooms, tomatoes or baked beans.
Always offer at least one vegetable and one fruit at lunch and supper.
Crunchy raw vegetables such as carrot sticks and cucumber slices are popular in lunch boxes and with cold meals.
For simple puddings, serve fruit with yogurt, custard or ice cream.
Younger children often eat more fruit when it is cut up for them.
Choose cooked puddings containing fruit, eg fruit crumbles, tarts and souffles.
If serving cake or biscuits always serve them with some pieces of fruit Drinks.
Milk and water are the best drinks for children as they do not damage teeth.
Fruit juices are acidic and, although they provide nutrients, they can damage tooth enamel when offered between meals. Offer them well diluted at meal times to avoid this.
Sugary, fizzy drinks and squashes are also acidic and give calories but virtually no nutrients. Given frequently between meals they cause tooth decay.
Children’s appetites vary from day to day depending on how they feel and how active they are so keep an open mind on how much they will eat. Let them decide.Always offer 2 courses at lunch and supper – a savoury course and a pudding. This gives 2 opportunities for children to eat nutritious foods.
Children eat better when there is a routine of 3 meals with 1 or 2 nutritious snacks each day. Do not allow grazing on food throughout the day. It is important for children to feel hungry before a meal and then learn that feeling of having had enough and not needing any more.
Many overweight children have no idea when they feel comfortably full as they tend to graze on snacks throughout the day and have little experience of when they are hungry and when they are not. tites vary from day to day depending on how they feel and how active they are so keep an open mind on how much they will eat. Let them decide.Always offer 2 courses at lunch and supper – a savoury course and a pudding. This gives 2 opportunities for children to eat nutritious foods.
Children eat better when there is a routine of 3 meals with 1 or 2 nutritious snacks each day. Do not allow grazing on food throughout the day. It is important for children to feel hungry before a meal and then learn that feeling of having had enough and not needing any more.
Many overweight children have no idea when they feel comfortably full as they tend to graze on snacks throughout the day and have little experience of when they are hungry and when they are not.
Build A periscope
Building a periscope
REQUIREMENTS
• Two 1-quart milk cartons
• Two small pocket mirrors (flat, square ones work best)
• Utility knife or X-Acto knife
• Ruler
• Pencil or pen
• Masking tape
Use the knife to cut around the top of each milk carton, removing the peaked "roof."
Cut a hole at the bottom of the front of one milk carton. Leave about 1/4 inch of carton on each side of the hole.
Put the carton on its side and turn it so the hole you just cut is facing to your right. On the side that's facing up, measure 2 3/4 inches up the left edge of the carton, and use the pencil to make a mark there. Now, use your ruler to draw a diagonal line from the bottom right corner to the mark you made.
Starting at the bottom right corner, cut on that line. Don't cut all the way to the left edge of the carton-just make the cut as long as one side of your mirror. If your mirror is thick, widen the cut to fit.
Slide the mirror through the slot so the reflecting side faces the hole in the front of the carton. Tape the mirror loosely in place.
Hold the carton up to your eye and look through the hole that you cut. You should see your ceiling through the top of the carton. If what you see looks tilted, adjust the mirror and tape it again.
Repeat steps 2 through 6 with the second milk carton.
Stand one carton up on a table, with the hole facing you. Place the other carton upside-down, with the mirror on the top and the hole facing away from you.
Use your hand to pinch the open end of the upside-down carton just enough for it to slide into the other carton. Tape the two cartons together
Now you have a periscope! If you look through the bottom hole, you can see over fences that are taller than you. If you look through the top hole, you can see under tables. If you hold it sideways, you can see around corners.
Periscope comes from two Greek words, peri, meaning "around," and scopus, "to look." A periscope lets you look around walls, corners, or other obstacles. Sub-marines have periscopes so the sailors inside can see what's on the surface of the water, even if the ship itself is below the waves.
REQUIREMENTS
• Two 1-quart milk cartons
• Two small pocket mirrors (flat, square ones work best)
• Utility knife or X-Acto knife
• Ruler
• Pencil or pen
• Masking tape
Use the knife to cut around the top of each milk carton, removing the peaked "roof."
Cut a hole at the bottom of the front of one milk carton. Leave about 1/4 inch of carton on each side of the hole.
Put the carton on its side and turn it so the hole you just cut is facing to your right. On the side that's facing up, measure 2 3/4 inches up the left edge of the carton, and use the pencil to make a mark there. Now, use your ruler to draw a diagonal line from the bottom right corner to the mark you made.
Starting at the bottom right corner, cut on that line. Don't cut all the way to the left edge of the carton-just make the cut as long as one side of your mirror. If your mirror is thick, widen the cut to fit.
Slide the mirror through the slot so the reflecting side faces the hole in the front of the carton. Tape the mirror loosely in place.
Hold the carton up to your eye and look through the hole that you cut. You should see your ceiling through the top of the carton. If what you see looks tilted, adjust the mirror and tape it again.
Repeat steps 2 through 6 with the second milk carton.
Stand one carton up on a table, with the hole facing you. Place the other carton upside-down, with the mirror on the top and the hole facing away from you.
Use your hand to pinch the open end of the upside-down carton just enough for it to slide into the other carton. Tape the two cartons together
Now you have a periscope! If you look through the bottom hole, you can see over fences that are taller than you. If you look through the top hole, you can see under tables. If you hold it sideways, you can see around corners.
Periscope comes from two Greek words, peri, meaning "around," and scopus, "to look." A periscope lets you look around walls, corners, or other obstacles. Sub-marines have periscopes so the sailors inside can see what's on the surface of the water, even if the ship itself is below the waves.
Thursday, 12 July 2007
Wednesday, 11 July 2007
my feelings for my students.......
Someone asked me recently why do you spend a lot of time on these extra things like blog,portal,presentations etc.I replied that teaching is my passion and I want to keep myself fully equipped for the teaching learning experience with the tech-savvy younger generations.I also told her that all teachers basically are keen learners.
When I find my students enthusiastic to perform the activities in the class and then all the more be more joyful viewing on my blog the activities done by them,I find myself deeply satisfied as a teacher.
I would love to quote these lines today......
Teacher is a mentor
Teacher is a guide.
With each of her student
having a sense of pride.
Working day and night
for all her students.
In their personalities,
trying to cause amendments.
As she knows! for the students
what is her role?
To make learning happen with fun
Is her sole goal.
She loves and cares
for them all the time.
to develop absorbent minds
is her aim that is prime.
When I find my students enthusiastic to perform the activities in the class and then all the more be more joyful viewing on my blog the activities done by them,I find myself deeply satisfied as a teacher.
I would love to quote these lines today......
Teacher is a mentor
Teacher is a guide.
With each of her student
having a sense of pride.
Working day and night
for all her students.
In their personalities,
trying to cause amendments.
As she knows! for the students
what is her role?
To make learning happen with fun
Is her sole goal.
She loves and cares
for them all the time.
to develop absorbent minds
is her aim that is prime.
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