energy

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Across
  1. 4. biomass increased global
  2. 7. the dam for hydropower builds up
  3. 11. water and solar energy is also
  4. 12. can be replaced in a short amount of time
  5. 14. compounds made from oil
  6. 15. chemical compounds that contain hydro and carbon atoms
  7. 17. solar energy won't work if the ___does not shine
  8. 19. Light and heat given off by the sun
  9. 21. turbine is powered by rushing water
  10. 23. lots of wind turbines together
  11. 24. coal is used seventy on percent%of electricity's
  12. 26. solar energy is
  13. 27. to save energy you can turn of the
  14. 29. water produces no green house
  15. 30. When the rod gets so hot it starts to melt
Down
  1. 1. wind is used
  2. 2. cut down trees for fuel
  3. 3. oil is mainly used for
  4. 5. comes from the earth's core
  5. 6. Dams stop fish from going up
  6. 8. nuclear fusion is very
  7. 9. substance that provides energy
  8. 10. reducing energy use
  9. 13. hard to find spaces for them
  10. 16. a layer that keeps either hot or cold air in
  11. 18. they have oxygen and ________ to make hydrogen fuel cells
  12. 20. crude oil is heated and put into other products
  13. 22. are very tall and loud
  14. 25. Biomass is not
  15. 28. can't get energy when it's night time