Energy Resources

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Across
  1. 6. the part of the nuclear reactor where nuclear fission occurs
  2. 7. a change from one form of energy to another
  3. 10. is a substance the provides energy
  4. 13. energy from the sun
  5. 15. chemicals that contain hydrogen and carbon atoms
  6. 17. energy rich substances formed from dead organisms
  7. 19. burning of fossil fuels
  8. 20. the central core of an atom
Down
  1. 1. electricity made by flowing water
  2. 2. another name for oil
  3. 3. compounds made from oil
  4. 4. intense heat from Earth's interior
  5. 5. the splitting of an atom's nucleus into two mini nuclei
  6. 8. made of metal cadmium
  7. 9. rods made of u-235
  8. 11. layer of material that traps air
  9. 12. made from living things
  10. 14. made from gasoline and alcohol mixing
  11. 16. the percentage of energy that is used
  12. 18. fuel rods generate too much heat that they start to melt