What makes a waterfall? -- Power of falling water -- Early uses of water power -- Waterwheel -- Building a dam -- It's electric! -- Electricity in our homes -- Who uses water power? -- Famous hydroelectric plants -- Hoover Dam -- Other types of energy -- Benefits of water power -- Water power problems.
Summary:
Explore the cause and effect of waterfalls, and the many ways they can be used to make electricity.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.