Conservation of Energy Review

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Across
  1. 5. to change from one form to another
  2. 8. a fossil fuel that is extracted from underground
  3. 10. energy from a physical force
  4. 11. the energy of motion
  5. 12. energy produced by the sun
  6. 13. energy in the vibrations that cause sound
  7. 14. a device that produces electricity by light striking a substance
  8. 19. materials that cannot be replaced by nature
  9. 23. material people no long want or they can’t find other uses for
  10. 24. the gravitational energy in flowing water.
  11. 26. energy from a light source, such as the sun
  12. 27. plant material such as wood
  13. 30. energy released by chemical reactions
  14. 31. energy heat that is transferred from the Earth’s hot core
Down
  1. 1. material that reduces the speed of heat loss or cold loss
  2. 2. rapid movement back and forth
  3. 3. dilute sulphuric and nitric acid that falls as rain or snow
  4. 4. coal, oil, and natural gas that developed over millions of years from decayed plants and animals
  5. 6. energy sources that are replenished by nature
  6. 7. the ability to do something with the minimum effort or waste
  7. 9. a ball sitting at the top of the roof is an example of this type of energy.
  8. 15. the release of harmful substances into the environment.
  9. 16. a unit for measuring electrical energy
  10. 17. the measure of how much energy is used over a period of time
  11. 18. gas used in home heating, that comes from underground deposits
  12. 20. a form of energy that can be transformed into other forms such as light, heat and sound
  13. 21. the ability to do work.
  14. 22. a fossil fuel found beneath the Earth. It is mined.
  15. 24. energy the energy contained in warm objects due to their warmth.
  16. 25. the energy stored in a body
  17. 28. the haze formed from automobile and industrial exhaust
  18. 29. a piece of wire in an incandescent light bulb