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Others Like “Do Plants Promote Pesticide Breakdown?”

Project Idea
Many people routinely use fertilizer for crops, gardens, and lawns. What people don't know is that each time they apply fertilizer, the fertilizer seeps through the soil into the water table. This can eventually lead to the contamination of a local water source, like a stream, pond, lake, bay, or ocean. This is an especially big problem for agricultural practices that frequently use large amounts of fertilizer on fields that are connected by irrigation channels. The run-off of fertilizer… Read more
EnvSci_p025
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Time Required Average (6-10 days)
Project Idea
One way to conserve water is to find safe ways to use it more than once. Here is a project to test whether greywater (water that has been used for washing or bathing) can be used for watering ornamental plants. Read more
EnvSci_p040
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Time Required Very Long (1+ months)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Adult supervision required
Project Idea
In the U.S., lighting homes and businesses accounts for 22% of all electric power consumption (Raloff, 2006). That's $55 billion worth of electricity, or the output of 100 large power plants (Raloff, 2006). How much energy could be saved by switching home lighting from incandescent to more efficient fluorescent lights? Conduct a survey to find out what types of lighting are used in homes in your area. Come up with an estimate of how many light fixtures are used in an average home, what types… Read more
Energy_p005
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Time Required Short (2-5 days)
Project Idea
Fill a jar a little more than half full with fresh water. Make a solution of salt water, and add a drop or two of food coloring to it. Pour the salt water solution into a plastic cup with a small hole in the bottom, and then place the cup in the jar with fresh water. (The only connection between the fresh and salt water should be via the hole in the bottom of the cup.) With the right combination of hole size and salt concentration, you will see an oscillating current develop in the jar. … Read more
Chem_p052
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Time Required Short (2-5 days)
Project Idea
thumbnail Whiteflies are a group of closely related insect species whose larvae live on plants. Like aphids, they suck nutrients from the plant's circulatory system. What is the most effective method for fighting a whitefly infestation in your garden? This project has some ideas for you to try. Read more
Zoo_p047
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Time Required Long (2-4 weeks)
Prerequisites Plants with whitefly infestation for testing different treatments.
Material Availability Readily available
Cost Average ($50 - $100)
Safety Adult supervision required. Follow manufacturers instructions for safe use of commercial whitefly treatments.
Project Idea
If you like to fish and you'd rather not be telling the story of "the one that got away," then this is a project for you. What combination of properties makes for the best fishing line? Here are some suggestions for getting started on your background research into fishing line properties: knot strength, abrasion strength, shock strength, tensile strength, limpness, controlled stretch, and desired range of visibility (Dodson, 2006). Choose the properties that you think are most important, and… Read more
MatlSci_p028
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Time Required Average (6-10 days)
Project Idea
The Sun is the ultimate source of the energy that powers weather systems on Earth. Geomagnetic storms are sun-powered storms in the upper atmosphere, arising from energized particles that are periodically ejected by the Sun. Among other effects, geomagnetic storms can wreak havoc with earth-orbiting satellites, and disrupt satellite communications. The global positioning system (GPS) is a network of 24 earth-orbiting satellites that constantly sends radio signals through the earth's… Read more
Weather_p009
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Time Required Very Long (1+ months)
Prerequisites You will need access to a WAAS-capable GPS receiver for this project. You will need to understand how to operate the GPS receiver. Note that WAAS signals are only available in North America.
Material Availability Readily available
Cost Low ($20 - $50)
Safety No issues
Project Idea
Did you know that you can use more water on your lawn and garden in the summer than you use for all other purposes all year long? If you have an automated sprinkler system for your lawn and/or garden, this project could save money on your family's monthly water bill. You'll also be helping to conserve a precious natural resource: clean water. Read more
EnvEng_p010
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Time Required Long (2-4 weeks)
Prerequisites Automated sprinkler system
Material Availability Readily available
Cost Low ($20 - $50)
Safety No issues
Project Idea
How much force can a rubber band withstand before breaking? Do rubber bands that stretch longer take more or less force to break? How does the elasticity of a rubber band change with temperature? Use a spring scale to measure the applied force, and a meter stick or ruler to measure the change in length. Recording with a video camera (or possibly two) can help you to capture the values at the moment before the rubber band breaks. You can change the temperature of the rubber bands using… Read more
ApMech_p033
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Time Required Short (2-5 days)
Project Idea
Tornadoes are a very destructive weather phenomenon that is very hard to predict. Certain weather conditions can indicate if a tornado is likely to occur, but the path that the tornado will take is completeley unpredictable. Storm chasers are people who chase tornadoes and try to capture them on film or video. They often have a sense of predicting where and when a tornado will strike, but the best images are also due to a bit of luck and survival instinct. Even though tornadoes are… Read more
Weather_p024
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Time Required Average (6-10 days)
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