| A | B |
| Fossil fuels which causes the least amount of air pollution | Natural Gas |
| Fossil fuel which causes the most air pollution | Coal |
| Light bulb which is least effecient | incandescent light bulb |
| Light bulb which is energy efficient | compact fluoroscent light bulb |
| Energy generated from the heat of the Earth's interior | geothermal energy |
| A substance that provides energy as a result of a chemical change | fuel |
| Energy source which forms at a slower rate than it can be formed is called | nonrenewable |
| Type of solar heating system which uses fans and pumps to distribute heat | Active solar system |
| Using fossil fuel reserves at a fast rate will result in this? | reserves will eventually be used up |
| Advantage-will not run out for billions of years | solar energy |
| These are sometimes used to power lights, telephones, and calculators | solar cells |
| What is the most widely used renewable energy in the world today? | hydroelectric power |
| Sugar cane, wood, and corn are all examples of this fuel. | biomass fuel |
| Insulating your home is an example of this? | energy conservation |
| Turning off the lights when you leave a room is an example of this? | energy conservation |
| Recycling aluminum cans and newspapers are examples of this? | energy conservation |
| Cars in the future may provide energy savings by running on this? | electricity |
| What is the process of burning a fuel to change chemical energy into thermal energy? | combustion |
| What are the three major fossil fuels | coal, petroleum or oil, and natural gas |
| What are the energy-rich substances in fossil fuels? | hydrocarbons |
| What is coal formed from? | decaying plant remains |
| What is the most plentiful fossil fuel in the United States? | Coal |
| Factories where crude oil is separated into fuels and other products are called this? | refineries |
| What is reducing energy use called? | energy conservation |
| What is the percentage of energy actually used to perform work called? | efficiency |
| This is a layer of material that helps block the transfer of heat between the air inside and outside a building | insulation |
| Splitting of an atom's nucleus | nuclear fission |
| Combining of two atoms nuclei | nuclear fusion |
| Removing nonrenewable resources from the ground is called? | mining |
| Soil not protected by ground cover can be eroded by these two forces | moving water and wind |
| Soil exposure in the Great Plains area during the 1930's caused this event? | Dust Bowl |
| Management of soil to prevent it's destruction | soil conservation |
| A long period of less rainfall than normal | drought |
| Taking shorter showers practices | water conservation |
| washing larger loads of laundry practices this | water conservation |
| Drinking water container in refrigerator practices this | water conservation |
| Turning off water while you brush your teeth practices this | water conservation |
| Using water wisely | water conservation |
| Type of water pollution caused by smoke and exhaust | Acid Rain |
| Farmer using runoff rainwater for irrigation practices this | water conservation |
| Factories reusing cooling water instead of returning to river or stream practices this | water conservation |
| Heating water in a power plant produces this? | steam |
| Compounds made from the fossil fuel petroleum | petrochemicals |
| These focus the sun's rays to heat water | giant mirrors |
| These can sometimes be used instead of air conditioners | fans |
| Liquid fossil fuel from remains of animals, algae, and protists | petroleum or oil |
| Wood, leaves and manure are included in this type of renewable energy source | biomass |
| Too much heat produced by the fuel rods in a nuclear power plant may cause this | meltdown |
| renewable energy source using the sun | solar energy |
| Electricity generated by moving water | hydroelectric power |
| Fuel which forms water as a by-product when burned | hydrogen |
| Renewable energy sources such as hydroelectric has this advantage | no pollution and free |
| Required for hydroelectricity | fast-moving water or river |
| Building dams can affect fish such as salmon by preventing | fish from traveling where the need to lay their eggs |
| Riding a bike is practicing | energy conservation |
| Removing salt from salt water to make fresh water | desalination |