Energy Resources

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