nagn energy crossword

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Across
  1. 1. An energy providing substance
  2. 2. Alcohol mixed with gasoline
  3. 4. are hydrogen fuel cells renewable
  4. 5. any organic matter that can be used as energy
  5. 6. Do you need calm or rough winds to produce wind power?
  6. 9. can be replenished in a short time
  7. 11. does hydropower create pollution
  8. 13. Is wind power clean true/false
  9. 15. does hydrogen reduce pollution
  10. 16. how much electricity does coal produce
  11. 18. oil natural gas one of the three major types of fossil fuels
  12. 19. earth's interior heat
  13. 20. Is wind renewable?
  14. 21. chemicals that contain carbon atoms and hydrogen atoms
  15. 22. does hydrogen take up less volume
Down
  1. 1. is nuclear renewable
  2. 3. given off by the sun
  3. 7. What is oil mainly used for
  4. 8. power What is coal mostly used for
  5. 10. can be replenished in a long time'
  6. 12. electricity powered by flowing water
  7. 14. a compound used to make plastics, paints, etc.
  8. 17. a factory that heats up crude oil to make plastic