energy resources

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Across
  1. 1. energy that comes naturally
  2. 5. a hard black solid fuel
  3. 7. the electromagnetic radiation emitted by the sun
  4. 8. harmful or unwanted material
  5. 9. the splitting of uranium atoms to release energy
  6. 11. a flammable yellow and black substance
  7. 12. heat deep in the earth's surface
  8. 14. could be plant material
  9. 15. natural resource that cannot be replaced
Down
  1. 2. disposal site of waste
  2. 3. water powered energy
  3. 4. fuels a fuel formed over a very long time
  4. 6. a gas found in the ground
  5. 10. the ability to change
  6. 13. turbines harness wind