Hydroelectric Power Links:

http://www.eia.doe.gov/kids/energy.cfm?page=hydropower_home-basics

http://ga.water.usgs.gov/edu/hyhowworks.html

http://ga.water.usgs.gov/edu/wuhy.html

http://www.waterencyclopedia.com/Ge-Hy/Hydroelectric-Power.html

Wind Energy Links:

http://www.energy.gov/energysources/wind.htm

http://www.eia.doe.gov/kids/energy.cfm?page=wind_home-basics