chapter 18 crossword Zoe lunsford

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Across
  1. 7. Use of the sun's energy for heating
  2. 9. Cell producing an electric current
  3. 10. Use solar energy that heat a fluid
  4. 11. Do not deplete natural resources
Down
  1. 1. energy from the ocean
  2. 2. Production of electricity by water
  3. 3. Prevention of wasteful use of energy
  4. 4. Reduce the amount of energy used
  5. 5. Plant based material used as fuel
  6. 6. Wind or solar power
  7. 8. Thermal energy in Earth's crust