Across
- 4. A device that converts the wind's kinetic energy
- 8. Heats rocks below Earth's surface
- 12. Uses technology that uses mirrors to focus sunlight to generate electricity
- 14. Energy that holds these particles together in the nucleus
- 15. The splitting of an atom's nucleus into two smaller nuclei
- 16. Temperature of soil a few feet underground
- 18. Process that releases hydrogen
Down
- 1. Kinetic energy of moving water to turn turbines and generate electricity
- 2. Wind turbines in groups
- 3. Uses technology to collect and store heat derived from the sun
- 5. Small nuclei of lightweight elements are forced together
- 6. Hydrogen gas can be used to produce electricity
- 7. Designing a building to collect sun's energy naturally
- 9. Movement of tidal water to generate electricity
- 10. Energy that is produced from this material
- 11. Help power millions of vehicles on today's road
- 13. Solar energy is converted directly into electricity
- 17. Fuel rods produced so much heat that they melted