Renewable Energy

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Across
  1. 4. Hydroelectric energy can hurt the _____
  2. 5. This energy source uses the water currents
  3. 6. This energy source uses previously alive things
  4. 7. This energy source uses the sun to create energy
  5. 9. This energy source uses heat from the Earth
  6. 10. Some people think wind turbines are very _____
Down
  1. 1. Forms of energy that will run out
  2. 2. Solar energy is very ______
  3. 3. This energy source uses the movement of air
  4. 8. Forms of energy that can be used infinitely