Renewable Energy

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Across
  1. 3. energy from any material that was living or recently living
  2. 6. energy made from flowing water
  3. 8. biomass becomes biofuel when mixed with
  4. 9. energy from a source that is replenished quickly enough that it can't be used faster than it can be produced
  5. 10. describes energy sources that are still in development
  6. 11. wind energy is captured with wind ___________
  7. 12. percentage of energy put into a system that does useful work
Down
  1. 1. the saving of energy
  2. 2. for a good effect or favorable gain
  3. 4. heat energy from deep within Earth
  4. 5. energy from the sun
  5. 7. for a bad effect, undesired