puzzle time

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Across
  1. 4. wind makes the energy
  2. 5. is when light makes the energy
  3. 6. biomass includes living or recently dead organic material that can be used fuel
  4. 7. is an energy that splits the inclined
  5. 8. energy is extracted from heat stored within earth
  6. 10. is made when different energy are using energy
Down
  1. 1. when you cant use it more than once
  2. 2. when you can use it more than once
  3. 3. is when heat makes the energy
  4. 9. is when water makes the energy