Energy Crossword

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Across
  1. 3. when we use heat from the earth to generate heat
  2. 7. energy created through the splitting of atoms
  3. 9. those that can be replaced and never run out
  4. 10. solid fossil fuel that is burned for energy
  5. 12. the materials we use from nature
  6. 13. any material made by plants and animals that we can convert into energy
  7. 14. liquid fossil fuel which is mostly underground
Down
  1. 1. unlimited heat and light energy
  2. 2. the best singer alive
  3. 4. gas of fossil fuels
  4. 5. those that can't be replaced at the same route it is being used
  5. 6. flowing water that creates energy that can be captured and turned into electricity
  6. 8. happens because the sun heats the earth's surface
  7. 11. releases heat and energy when they are burned and can be bad for the environment