Water Power : Energy from Rivers, Waves, and Tides

From rushing river currents to the waves that crash along coastlines, water power is all around us. For centuries, people have relied on the movement of water for transportation and a power source for simple machines. It can also be used to create the electricity we rely on every day. Readers (Grades 3-5) will find out what makes water flow from one place to another, how dams and turbines are used to harness hydropower, and much more.