bolisn energy crossword

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Across
  1. 5. the biggest use of coal in the usa is
  2. 11. 81% of our total energy is from this
  3. 13. compounds that are made from oil
  4. 17. cannot be replenished in a short period of time takes millions and billions of years
  5. 18. the energy conservations that occur when a car engine burns gasoline
  6. 21. petrochemicals are mainly used to make plastics cosmetics and
  7. 22. this is about a quarter of the energy we use
  8. 23. two nuclei are combined to form one larger nucleus
  9. 25. energy produced by flowing water
  10. 26. fossil fuels are renewable or nonrenewable?
  11. 29. heat from the earth's interior
  12. 30. the biggest type of fossil fuel we use
Down
  1. 1. a factory that crude oil is heated and separated into fuels
  2. 2. the splitting of an atoms nucleus into two smaller nuclei
  3. 3. chemicals compounds that contain carbon and hydrogen atoms that make fossil fuels
  4. 4. wood, manure, food wastes, and plant parts that can be used as fuels
  5. 6. the original source of energy In wind and flowing water
  6. 7. fossil fuels are formed by ___ when pressure and heat is added
  7. 8. replenishes in a relatively short period of time
  8. 9. about 13% of all energy comes from
  9. 10. fuel rods generate so much heat they start to melt
  10. 12. what you put in your walls to keep the cold/warm air in
  11. 14. the biggest use of oil in the Usa is?
  12. 15. what we dig for in pockets of rock
  13. 16. a substance that provides energy
  14. 19. which lightbulb uses less energy incandescent or compact flourescent
  15. 20. about 20% of all energy is from this
  16. 24. using your energy smarter
  17. 27. adding the mixture of alchohol to gasoline forms and can be used as car fuel
  18. 28. about 2.2% of the USA's energy