Have you ever been to the Grand Canyon and seen what water can do over millions of years? When you turn on the faucet, do you see water come out, or mud? In this experiment you'll find out how engineers help prevent erosion, which keeps dirt out of our water.
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One way to save water is to turn the faucet off while you brush your teeth. But did you know that there are products that can help save water even while the water is on? In this experiment find out how low-flow faucets and aerators work to reduce the flow of water. How much water can you save?
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Would you like some sky vegetables for dinner? How about some fresh-cut roof flowers to put in vases in your house? Around the world, rooftops are being transformed into living green expanses. Besides beauty, rooftop gardens have a number of advantages, including growing food and taking carbon dioxide out of the air while releasing breathable oxygen. But can rooftop gardens also keep your house cooler and lower your energy bill? Try this science fair project to find out.
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What do humans need to survive? We need food, water, and warm shelter. We all need a warm place to live, particularly when it's chilly outside. How do many of us warm our houses or apartments? We depend on fossil fuels to supply gas and electricity to our heaters. But burning fossil fuels to create energy is harmful to the environment. What if there was a way to warm our homes without burning fossil fuels and it was free? In this science fair project, you will build a solar air heater and see if it can warm the air in a cool room. Take advantage of the Sun. It's always shining!
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Watch out! It's Eddy Vortex, Superhero! He swirls, he tumbles, he churns up air and water! OK, maybe eddies and vortices aren't exactly superheroes, but they are powerful regions of air and water flow that you have to watch out for in some surprising places. Try out this science fair project to discover why, as well as where and how to find them.
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Are you concerned about global warming and greenhouse gases? Here's a project that shows how hybrid electric and plug-in hybrid electric vehicles can reduce greenhouse gas emissions. Compare your own car's greenhouse gas emissions to hybrid cars using online data from PG&E and Google.org's RechargeIT project.
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Divide a part of your garden into two equal plots, with each plot receiving equal amounts of sun. Cover one plot with two inches of organic mulch, such as compost or ground bark. Leave the other...
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If you're interested in arts and crafts, you might like this project. It uses several alternative, renewable sources of fiber to make paper, and compares the resulting papers for strength and writing quality.
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Has your house (or one of your friend's houses) been remodeled recently? Were any improvements made for energy efficiency (solar systems, better insulation, passive solar heating, better lighting)?...
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Is there a public park, playground, or beach near you that suffers from a litter problem? Here is a way that you can do something about it! First, get a measure of the size of the problem by...
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