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Copyright © Glencoe/McGraw-Hill, a division of the McGraw-Hill Companies, Inc.<br />
Name Date Class<br />
Directions: Arrange the sources of energy in the United States in order from least to greatest, and list<br />
the percentage of energy that each source supplies.<br />
Directions: Explain why the cost of fossil fuels might become more expensive in the future.<br />
7.<br />
Directions: List two advantages of burning natural gas to provide energy, compared to burning coal<br />
or oil.<br />
8.<br />
9.<br />
Directions: List two disadvantages of burning coal, oil, or natural gas to provide energy.<br />
10.<br />
11.<br />
1<br />
<strong>Study</strong> Guide<br />
Directions: Find words or phrases in the chapter to match these descriptions.<br />
12. the law of conservation of energy<br />
13. an example of a form of energy that is not useful<br />
14. what it means to use energy<br />
Fossil Fuels<br />
Least Greatest<br />
1. 2. 3. 4. 5. 6.<br />
Chapter<br />
9<br />
15. a source of energy that contains more energy per kilogram than coal or petroleum and provides<br />
about 25% of the energy consumed in the U. S. A.<br />
Fossil Fuels 31