energy sources by Karen E. Bledsoe

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Across
  1. 3. adding carbon dioxide to the atmosphere(Pg12)
  2. 4. energy that is associated with motion(Pg5)
  3. 7. stored energy(Pg5)
  4. 9. a fan-like machine that generate electricity(Pg9)
  5. 10. partly decayed plant matter(Pg7)
  6. 13. is an element that is naturally radioactive(Pg15)
  7. 14. an electricity shortage(Pg6)
  8. 16. protects us from ultraviolet rays and can be harmful at ground level(Pg12)
  9. 17. a layer of earth that is made up of hot liquid magma(Pg31)
  10. 19. the waste product of an nuclear reaction(Pg18)
  11. 20. a renewable source that channels water to create energy for electricity(Pg28)
  12. 22. heat energy that is produced in the earth's hot liquid interior(Pg31)
  13. 23. what uranium atoms are in when split apart(Pg15)
  14. 25. the center of the earth(Pg31)
Down
  1. 1. an energy source that can't be used up(Pg13)
  2. 2. another name for crude oil(Pg9)
  3. 5. energy made by using sun(Pg22)
  4. 6. oil that is naturally found underground(Pg6)
  5. 8. energy made from wood,crops and waste(Pg33)
  6. 11. splitting an atom(Pg15)
  7. 12. spinning blades that catch wind and turn it into energy(Pg26)
  8. 15. the outer layer of the earth(Pg31)
  9. 18. energy that comes from limited sources(Pg7)
  10. 21. hot liquid rock(Pg31)
  11. 24. the basic unit of all substance(Pg14)