Front

What is geothermal energy?

Back

Heat energy deep inside the Earth.

Front

Is wind energy renewable or nonrenewable?

Back

Renewable.

Front

What is hydropower (hydroelectric) energy?

Back

Energy that is created from the force of moving water.

Front

What produces wind energy?

Back

Moving wind.

Front

What does sustainability mean?

Back

Meeting human needs in ways that ensure future generations can also meet their needs.

Front

What is biomass?

Back

Organic material that comes from plants and animals, used as a renewable energy source.

Front

What is solar energy?

Back

Energy from the sun that can be converted into thermal or electrical energy.

Front

What are natural resources?

Back

Materials or substances that occur in nature and can be used for economic gain.

Front

What is an inexhaustible resource?

Back

A resource that cannot be depleted, such as solar energy.

Front

What is nuclear energy?

Back

Energy released during nuclear fission or fusion, used to generate electricity.