Chapter 18

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Across
  1. 2. areas of land with groups or windmills
  2. 5. use of solar energy to heat water and stored for later use
  3. 7. cell works almost like batteries, don't need recharging
  4. 10. colorless, odorless gas, traps heat in the atmosphere
  5. 11. thermal energy conversion, produces energy from harnessing temp differences
  6. 14. combined heat and power distributed generation or recycled energy
  7. 15. refers to energy sources other than fossil fuels
  8. 16. practice of using less energy
  9. 17. harnessed by converting energy from tides
Down
  1. 1. fuels include wood, crops, manure, some wastes
  2. 3. contains hydroxyl group bound to a carbon atom, flammable
  3. 4. energy that cannot be depleted
  4. 6. doesn't require solar panels to collect energy
  5. 8. using less energy to get the same job done
  6. 9. obtained from kinetic energy of water
  7. 12. harnessed from within the earth, renewable source
  8. 13. made of semiconductor, absorbs photons