Earth's Resources

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Across
  1. 3. original
  2. 7. result
  3. 8. able to be had
  4. 10. a liquid fossil fuel formed by the decay of ancient plants and animals
  5. 13. a material that releases energy as heat when it burns
  6. 15. a device that changes energy of motion into electrical energy
  7. 18. gases from the plant pass through a substance that reduces the amount of pollutants that gets into the air
  8. 20. materials that formed as ancient plants and animals decayed underground
  9. 22. harmful substance
Down
  1. 1. using the energy of moving water
  2. 2. a device that spins as the gas flows and changes the heat energy of the steam into energy of motion
  3. 4. found in underground rocks
  4. 5. something made for a particular purpose
  5. 6. stores chemical energy and can convert that energy into electrical energy
  6. 9. a pollutant that increases the atmosphere's ability to hold heat
  7. 11. a fossil fuel that occurs in the gas state
  8. 12. heat energy obtained from beneath Earth's surface
  9. 14. unstable elements that are produced in nuclear power plants
  10. 16. the release of substances into the environment
  11. 17. the process of burning a fuel to produce heat and light
  12. 19. a hard black substance
  13. 21. effects