P5+Energy+Resources

**Emz Page**
The tides can be used to generate electricity. A dam is built across a river estuary, as shown below.



(a) The water is higher on one side of the dam than on the other. As the water begins to flow through the dam it turns a turbine. The turbine generates electricity.

Describe the energy changes which take place in this process. ......................................................................................................................... ......................................................................................................................... ......................................................................................................................... .........................................................................................................................

(b) Explain why tides are classified as a renewable energy source. ......................................................................................................................... .........................................................................................................................

Click here to see a campaign about renewable energy