Across
- 3. A drilling method to get oil
- 5. a large windmill
- 6. The process of removing impurities
- 8. a type of magnet that makes energy
- 9. Rocks that have empty spaces
- 11. A liquid that can be transported easily and can be used to make fuel
- 12. a pipe that feeds water from a dam
Down
- 1. power from moving water
- 2. the movement of things when there is a difference in temperature
- 4. Energy from the wind
- 7. Methane found near coal
- 10. Energy from the sun