Water is a renewable resource that is an important source of electricity in California and the Northwest. The potential energy of water is harnessed to produce mechanical energy which can be used directly, or used to generate electricity.
Moving Water -- Moving Blades
http://www.energyquest.ca.gov/projects/waterenergy.html
You can make a small water turbine model by taping cardboard strips on a cork. Put pins in the ends for axles and make a U-shaped holder for it. You can also slip metal or plastic fins into the slits made in the cork. This will turn as fast as the water stream is moving, so generally turbines have high speed jets directed toward them.
Would you like to try to make your own?
Love Ms Wen
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