Renewable Energy

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Across
  1. 3. Energy from the heat under the Earth's surface
  2. 4. Wind spins a _____
  3. 6. Energy generated from natural resources
  4. 7. Renewable energy sources cannot run ___
  5. 9. Biofuels are made by burning ______
Down
  1. 1. Energy from the movement of water
  2. 2. Energy from the Sun
  3. 5. Several wind turbines are called a wind _____
  4. 8. Solar energy is collected on a solar ____