Energy Crossword

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Across
  1. 3. turns hydroelectric plant blades
  2. 6. fuel for combustion engines
  3. 7. reducing energy use
  4. 8. energy from flowing water
  5. 11. energy stored in an object's position
  6. 13. unit of electrical power
  7. 14. cannot be created or destroyed conservation of energy principle
  8. 16. energy from the sun
  9. 17. propels wind turbines
Down
  1. 1. releases energy in a reaction
  2. 2. main component of natural gas
  3. 4. stores energy in an electric car
  4. 5. rotating part of an electrical generator
  5. 7. flow of electrical power
  6. 8. engine converts thermal energy to mechanical
  7. 9. heat primary source of geothermal energy
  8. 10. Earth's internal heat as energy
  9. 11. opposite of kinetic energy
  10. 12. energy converted by solar panels
  11. 15. measure of energy effectiveness