Renewable Energy Crossword

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Across
  1. 2. a type of biomass for energy
  2. 4. energy produced through organic materials
  3. 5. also known as biomass
  4. 8. hydroelectric generation in which water is retained behind a low dam or no dam
  5. 9. a technology that transfers heat from the ground to a building
  6. 14. the storage of water in a reservoir behind a dam
  7. 16. a turbine that converts wind energy into electricity
  8. 19. an electrical chemical device that converts fuel, such as hydrogen, into an electrical current
  9. 21. the percentage of energy that is actually used to perform work
  10. 22. source of solar power
  11. 23. choosing this type of energy source reduces human impact on the environment helping to create a cleaner Earth
  12. 24. electrical energy can be stored in a __
  13. 25. energy sources that are nonrenewable
Down
  1. 1. heat energy that comes from the natural radioactive decay of elements deep within Earth
  2. 3. technology used to convert sunlight to energy
  3. 6. the application of an electric current to water molecules to split them into hydrogen and oxygen
  4. 7. energy captured from sunlight with advanced technologies
  5. 10. gases that nonrenewable sources do not emit
  6. 11. energy generated from the kinetic energy of moving air
  7. 12. released as a result of hydrogen fuel cells production
  8. 13. renewable energy sources are known to be __ because they don't run out
  9. 15. an impoundment facility, typically a large hydropower system, uses a dam to store river water in a reservoir
  10. 17. fuels that cannot be reformed during a lifetime
  11. 18. electricity generated by the kinetic energy of moving water
  12. 20. we stop or slow __ warming by using renewable energy sources