Alternative Energy

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Across
  1. 4. fastest growing source of renewable energy currently
  2. 7. Fossil fuels are an example of _____ sources of energy
  3. 12. Geothermal energy harnesses energy from decaying
  4. 13. Biomass captures energy from the sun that is stored in decomposing
  5. 14. this energy is generated from decaying uranium atoms in the Earth's core
  6. 18. The suns heat and the spinning earth generate
  7. 19. solar panels ____ the suns energy to a form we can use
  8. 20. The winds energy is captured by the blades of this
Down
  1. 1. generated at dams
  2. 2. Indefinitely reliable
  3. 3. _____ is a source of renewable energy
  4. 5. Gasses in the atmosphere that reflect heat back down are called ____ gasses
  5. 6. Buried
  6. 8. Solar panels convert the energy from photons into
  7. 9. Many vehicles use this fossil fuel
  8. 10. Energy source that does not produce greenhouse gases
  9. 11. used to capture solar energy
  10. 15. Reduce, reuse and ____ are three ways to cut down on fossil fuels
  11. 16. a source of renewable energy
  12. 17. _____ can never be created or destroyed