Geothermal energy uses heat energy from under the earth’s surface to heat buildings and also to generate ____ if the heat is hot enough to make steam.

• building materials

• solar power

• fossil fuels

• electric energy

A student is preparing a presentation about alternative energy resources. The student has found the following information:
Which alternative energy source does this information describe?

• Hydroelectricity
• Solar energy
• Biofuels
• Wind

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
• 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

The house illustrated here uses panels on the roof to collect a natural resource and convert it into electricity that can be used.

Which alternative energy source does this house use?

• Water

• Wind

• Solar photovoltaics

• Geothermal

An energy company wants to build a hydroelectric power plant. Which of these characteristics of an area is most important to the development of a hydroelectric power plant? 

• The area has a cool, rainy climate.
• The area is located in a valley with very little wind and frequent heavy fog.
• The area has a river that flows rapidly from nearby mountains through a valley
• The area has no geysers or hot springs.

Which of the following transforms energy from uranium atoms into electrical energy?

• magnetic fields

• solar panels

• nuclear fission

• fusion, like in the sun

Which of the following transforms energy from plant and animal matter into electrical energy?

• rotating windmills

• burning biomass

• splitting atoms

• mining coal

Which of the following transforms energy from the oceans into electrical energy?

• ocean buoys
• tidal turbines
• tsunamis
• deep sea trenches

Which is a nonrenewable source of energy?

• nuclear
• wind
• sunlight
• biomass