Energy

The Earth's major source of energy is -

• gas

• wood

• the sun

• the wind

All of the following describe a way in which the sun helps life on Earth except -

• The sun heats the seas, land, and atmosphere.

• The sun bounces off the Earth's atmosphere and goes back into space.

• The sun helps move water through the water cycle.

• The sun is used by plants to make food.

Click all the natural resources below.

• forests

• plastic

• metal

• cement

Click all the natural resources below.

• soil

• trees

• rivers

• swimming pools

Dams and lakes are built to create energy with this natural resource. What resource is it?

• wind

• water

• solar

• gas

Which energy source is made from plants?

• oil

• solar

• wind

• wood

The energy used in MOST cars comes from -

• sun

• water

• oil

• coal

This energy resource is used to make most of the electricity in the United States. It is a shiny, black rock called -

• gas

• coal

• oil

• natural gas

This fossil fuel is made from plants and animals that lived millions of years ago. It is a resource you cannot see, smell, or taste. What is it?

• wind

• natural gas

• oil

• coal

Click all of the following that are fossil fuels.

• oil

• natural gas

• coal

• wood

• water