1. Hydroelectric Energy

2. How it Works The water is held behind a dam, forming an artificial lake, or reservoir. The force of the water being released from the reservoir through the dam spins the blades of a giant turbine. The turbine is connected to the generator that makes electricity as it spins. After passing through the turbine, the water flows back into the river on the other side of the dam. Hydroelectric power, or hydroelectricity, is generated by the force of falling water.

3. How it Works

4. Ice Harbor Dam  On May 9, 1962, Vice President Lyndon Johnson (1908-1973) dedicates Ice Harbor Dam on the Snake River. Planning and construction took 15 years due to lack of funding and to concerns about potential harm to migrating fish. Proponents of the dam countered environmental concerns with arguments that the electricity generated would support the Hanford nuclear weapons facility, and that the retained water would irrigate crops. Ice Harbor Dam

5. Raccoon Mountain: pumped storage plant Steep Raccoon Mountain, located along the eastern fringe of the rocky Cumberland Plateau, has always been a remote place, sparsely settled and hard to get to even though it’s only six miles west of Chattanooga, Tennessee, as the crow flies. Downstream from the city, even the mighty Tennessee River takes a sharp hairpin turn northward to avoid this big bulk of limestone and pine. Unchanging as the mountain looks, it’s not the same as it was 30 years ago. On top of it is something that didn’t exist when Cherokee hunters stalked bear and wildcat there in times past: a man-made lake holding about 60 million cubic yards of water. Raccoon Mountain. Raccoon Mountain is a pumped storage plant and not a dam.

6. Advantages of using Hydroelectric Energy Abundant, clean, and safe Easily stored in reservoirs Offers recreational benefits like boating, fishing, etc

7. Disadvantages of using Hydroelectric Energy Can have a significant environmental impact People can lose their homes Can be used only where there is a water supply

8. HYDROELECTRIC ENERGY! It’s Easily stored in reservoirs! Choose Hydroelectric Energy! Offers recreational Benefits like boating And fishing It’s Abundant,Clean, And Safe!

9. Sources (URL) http://www.sei.ie/Schools/Secondary_Schools/Subjects /Geography_JC/Pros_Cons1/ http://www.sei.ie/Schools/Secondary_Schools/Subjects /Geography_JC/Pros_Cons1/ http://www.eia.doe.gov/cneaf/solar.renewables/page/hy droelec/hydroelec.html http://www.eia.doe.gov/cneaf/solar.renewables/page/hy droelec/hydroelec.html http://www.sei.ie/Schools/Secondary_Schools/Subjects /Geography_JC/Pros_Cons1/ http://www.sei.ie/Schools/Secondary_Schools/Subjects /Geography_JC/Pros_Cons1/ http://www.historylink.org/index.cfm?DisplayPage=o utput.cfm&File_Id=7607 http://www.historylink.org/index.cfm?DisplayPage=o utput.cfm&File_Id=7607 http://www.tvakids.com/electricity/hydro.htm http://www.tva.gov/power/hydroart.htm http://www.tva.gov/heritage/mountaintop/index.htm http://www.personal.psu.edu/users/e/l/elr5005/hydroe lectricstinks_files/image001.jpg http://www.personal.psu.edu/users/e/l/elr5005/hydroe lectricstinks_files/image001.jpg http://upload.wikimedia.org/wikipedia/commons/d/de/ Stwlan.dam.jpg http://upload.wikimedia.org/wikipedia/commons/d/de/ Stwlan.dam.jpg http://www.crem- ltd.com/images/clyde_hydro_800px.jpg http://www.crem- ltd.com/images/clyde_hydro_800px.jpg http://www.mercycorps.org/photos/photo1213038673.jpg http://www.mercycorps.org/photos/photo1213038673.jpg

10. Made by Hannah Bryant