"Energy + Environment" Vocabulary

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Across
  1. 4. an energy source that uses water
  2. 6. an energy source that uses sunlight
  3. 7. an energy source that comes from decayed organic matter
  4. 8. a resource that can replenish itself or continue to exist in large quantities
  5. 9. generating electricity and heat simultaneously
  6. 10. liquid fuel produced from renewable biological sources
  7. 12. a mineral that can be mined and used in fertilizer
Down
  1. 1. a resource that cannot replenish itself at the rate that it is used
  2. 2. a machine that produces continuous power through a wheel or rotor
  3. 3. a device that converts motion-based power or fuel-based power into electric power
  4. 5. an energy source that uses heat from the Earth
  5. 10. a renewable energy source that comes from organic matter
  6. 11. a radioactive metal that is used to make nuclear fuel