Across
- 6. Energy from the movement of water is called
- 7. Renewable energy sources cannot run _______
- 8. Energy from the sun is
- 9. Energy generated from natural sources is called
Down
- 1. Wind spins a _______
- 2. Solar energy is collected on a solar _________
- 3. Several wind turbines are called a wind ______
- 4. Energy from under the earth's surface
- 5. Biofuels are made from burning ________