chomelawala energy crossword

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Across
  1. 3. A layer of material that traps the air to help block the transfer of heat between the air inside the building
  2. 5. a substance that provides energy
  3. 10. energy-rich substances formed from the remains of organisms
  4. 11. when uranium rods melt and explode
  5. 13. percent of energy used to do work
  6. 17. save energy
  7. 20. 3 types of fossil fuels
  8. 22. another name for oil
  9. 23. a chemical compound that contain hydro and carbon atoms
  10. 24. a factory in which crude oil is heated and separated into fuels and other products
  11. 25. an original source for wind and flowing energy
  12. 26. energy created by the movement of the air
  13. 27. light and heat given off by the sun
  14. 28. fossil fuels made in a long amount of time
Down
  1. 1. house that uses passive and active heating systems to get electricity and heat
  2. 2. fuels are burned, the chemical energy that is released can be used to generate another form of energy
  3. 4. wood, plants parts, manure, and food wastes that can be used as fuels
  4. 6. a nuclear reaction in which the nucleus forms up into a heavy nucleus
  5. 7. alchohol mixed with gasoline
  6. 8. coal is most used for
  7. 9. compounds that are made from crude oil
  8. 12. 3 types of fossil fuels
  9. 14. oil is mainly used for
  10. 15. a nuclear reaction in which the nucleus separates
  11. 16. used to start a reaction
  12. 18. heat from the earth's interior
  13. 19. electricity created by the power of moving water
  14. 21. what source is hydrogen fuel cells