Review Worksheet

1. Most of our energy today comes from _______________ fuels, formed millions of years ago. These three fuels are ____________, _____________ and __________ _______.
    
2. Burning fuels cause several kinds of ________________, including global warming and acid rain.
    
3. Putting lots of high-quality windows on the ____________ side of a house captures solar energy for home heating.
    
4. The energy needed to heat and cool a home can be greatly reduced by using lots of ____________ in walls and ceiling.
    
5. One of the most cost effective uses of solar energy is heating a ______________ ____________, so you can use it for more of the year.
    
6. Most homes in Michigan use electricity, propane, or natural gas to heat their water. But heating water with _____________ energy is easy and cost effective.
    
7. Photovoltaic panels (also called "solar cells") produce _______________ from the sun. They have no moving parts and keep working for decades.
    
8. Over two hundred homes in Traverse City buy electricity generated from the energy of the ___________, another renewable energy source.
    
9. The energy needed to manufacture something is called ______________ energy. Using things that last longer can save on this kind of energy.
    
10. Americans produce more ______________ gases per person than almost any other country. These gases are causing the earth to get warmer, melting glaciers and changing the earth’s climate.
    
    
11. Two gases that produce acid rain (or snow) are _________________ and ______________. These gases are produced when fossil fuels are burned.
     
12. Oil is used to make gasoline, diesel fuel, and jet fuel. More than ________ of all the oil used in the U.S. is imported from other countries.
     
13. Of the three fossil fuels, __________ will be the first one to get used up.
     
14. Small __________ ____________ were commonly used on farms to supply electricity until the U.S. government subsidized the construction of power lines into rural areas in the early 1900s.
     
15. You can cut the amount of electricity you use for lighting by 75% by using _________ ______________ bulbs. They last 10 times as long as incandescent bulbs as well.
     
16. When buying appliances, you can be sure they’ll use less energy and pollute less than others if you pick those with an __________ ___________ label from the U.S. Department of Energy.
     
17. Michigan now allows every home and business to pick their electricity supplier. Some energy suppliers use renewable energy sources, which are better for the environment so their product is called ___________ power.
     
18. Energy efficiency allows us to do the things we do today, but using _________ energy in the process.
     
19. & 20.) Name two things you can do to reduce energy use: