Unit 5 Vocabulary

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Across
  1. 2. movement of water through a dam in a river is converted to usable energy energy (renewable)
  2. 4. heat is harnessed from deep beneath Earth's surface and converted to usable energy (renewable)
  3. 5. turbines harness the movement of air and convert it to usable energy (renewable)
  4. 8. a gas usually found in the ground positioned above petroleum deposits (nonrenewable)
  5. 9. a hard, black solid fuel formed from the remains of plants over millions of years ago (nonrenewable)
  6. 11. gases in the atmosphere that absorb and retain heat energy, cause air pollution
  7. 12. disposal site for solid waste
  8. 13. biological material such as plant material or animal waste converted to a usable energy source
  9. 15. the presence of harmful or unwanted levels of material in the environment
  10. 17. reduce, reuse, recycle
Down
  1. 1. an energy resource that takes millions of years to form from the remains of plants and animals
  2. 3. an energy resource such as trees or wind that is replaceable by natural means
  3. 6. the ability to cause change
  4. 7. efforts to wisely use, distribute, and protect valuable resources both natural and man-made
  5. 8. the splitting of Uranium atoms to release energy (non-renewable)
  6. 10. a natural nonrenewable fuel formed over a very long time in the past from the remains of living organisms
  7. 14. the sun's energy is collected and converted to usable energy (renewable)
  8. 16. a flammable, yellow-to-black liquid composed of hydrocarbons occurring naturally inside Earth (nonrenewable)