Energy Resources Vocabulary

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Across
  1. 5. means to reduce energy use
  2. 6. energy-rich substance formed from the remains of organisms (coal, oil, natural gas)
  3. 8. chemical compounds that contain carbon and hydrogen atoms
  4. 9. burning
  5. 12. a way to conserve energy
  6. 14. oil
  7. 16. energy from the sun
  8. 17. electricity produced by flowing water
  9. 20. nucleus split apart
Down
  1. 1. a change from one form of energy into another
  2. 2. the part of the nuclear reactor where nuclear fission occurs
  3. 3. energy from heat in Earth
  4. 4. compounds made from oil
  5. 7. nuclei combined
  6. 10. rods that contain U-235
  7. 11. fuels made from living things
  8. 13. when fuel rods generate so much heat they begin to melt
  9. 15. a substance that provides energy
  10. 18. the percentage of energy that is actually used to perform work
  11. 19. a factory where crude oil is heated and separated into other products