chapter 18

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Across
  1. 2. practice of using energy
  2. 3. heats the surface water
  3. 5. solar panels
  4. 7. converting energy-tides
  5. 10. heat within the earth
  6. 12. dosnt take natural resorce
  7. 13. containes windmills
  8. 15. renewable and organic hydroelectricenergy energy produced by water
Down
  1. 1. converts the energy light
  2. 4. utilization of the steam
  3. 6. use solar energy to heat
  4. 8. energy that is sustainable
  5. 9. the use of less energy
  6. 11. colourless, odourless gas
  7. 12. nervous system depressant
  8. 14. electrochemical reaction,