What are some of the ways we keep track of time? We have alarm clocks, wristwatches, and cell-phone clocks, to name a few. Just a few hundred years ago, our ancestors did not have any of these conveniences, yet they found ways to tell time. How? By using devices such as water clocks. In this science project, you will follow in the footsteps of early engineers and build a water clock that tracks time for three hours.
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Average (6-10 days)
You will need to purchase a ring stand or build a stand to hold the water clock. See the Materials and Equipment list for details.
Low ($20 - $50)
Use caution when using tools like hacksaws and hammers. Adult supervision is required.
If you've played catch with both Aerobie flying rings and Frisbees, you know that the rings fly much further than the Frisbees with the same throwing effort. Why is that? Investigate the aerodynamics of flying rings and flying disks and find out!
You have probably read all about forms of alternative energy like solar and wind power. But what about human power? With the aid of a coil of wire and some magnets, you can generate electricity with nothing more than a flick of your wrist. In this project, you will build a small hand-powered electrical generator that can power a series of tiny lights. Get ready to save the planet and get some exercise at the same time!
You can find this page online at: http://www.sciencebuddies.org/science-fair-projects/search.shtml?v=solt&pi=Phys_p067&p=2
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