Energy

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Across
  1. 2. was used up a lot in the 1950s
  2. 5. energy that can be replenished
  3. 12. dams are included in this category
  4. 13. energy source that produces energy from the earth's heat
  5. 14. how clean the air is
  6. 15. turns kinetic energy into electrical
  7. 17. produces energy by burning organic plants and animals
Down
  1. 1. renewable energy source that can turn radiant energy into electrical energy
  2. 3. energy sources that can be replenished
  3. 4. transforms one energy form to another
  4. 6. turbines turn a wheel which produces energy
  5. 7. efficient usage of energy
  6. 8. is the most used fossil fuel
  7. 9. fossil fuels are in this category
  8. 10. produces energy from the sun
  9. 11. this material powers nuclear power plants
  10. 16. the main source of energy