Hydroelectric Rocks

Hydroelectric means water power. Hydroelectric is clean and more efficient, or not…

Hydroelectric power plants are all over the world. The biggest dam is the Grand Coulee in Washington State; they have a big dam because they need to generate enough electricity for the whole city.
Hydroelectric power generates electricity, controls flooding, and to collect drinking water.

Sometimes the water gets really hot. They cool it down with cold water.
Dams can be from a couple feet low. Sometimes to hundred feet high.

Dams are to trap water. The force of the water pushes and spins the giant turbine and the turbine spins the metal shaft in an electricity generator, which is a motor that produce electricity as it spins.

Fish are killed because fish don’t know that the dams are there so they bump into it and they die. When other fish come near the dead fish they die too. They die because when a fish dies they let out the poison and when other living things breathe into it they also die. Most dams have fish ladders so that the fishes can jump in or out the dam.

Hydroelectric power is important because it is one way to get drinking water and electricity.