Geothermal energy is energy from 

• the sun
• heat from deep in the earth
• wind
• inexhaustable

Wind energy is 

• generated from moving water
• starts with moving air and generates electricity
• starts with the sun
• comes from the earth

Alternative energy is

• Generated by natural resources and is renewable
• man made
• nonrenewable
• not helpful to us in Texas

Energy from the sun is called

• Biofuels
• Solar
• Geothermal
• Hydroelectric

Nonrenewable resources are

• man-made resources
• cannot be replaced quickly
• can be replaced in a short amount of time
• never run out

There are 5 forms of Alternative Energy

• True
• False

Corn, wheat, and soybeans can be made into a substance called ethanol. In some places, ethanol is part of a mixture used to power cars and trucks. What type of alternative energy resource is ethanol?

• Hydroelectric
• Geothermal
• Biofuels
• Solar

All of the following are considered alternative energy sources EXCEPT –

• Wind
• Coal
• Biofuel
• Solar

The poster shown below advertises tours of a power plant.
This power plant produces electricity most likely by using-

• fossil fuels
• biofuels
• solar energy
• geothermal energy

Which alternative energy source is generated beneath Earth’s crust and can be used to heat buildings?

• Hydroelectric energy
• Geothermal energy
• Wind energy
• Solar energy