Across
- 5. splitting nuclei to make electrical energy
- 7. Turbines used to create energy in certain areas
- 8. Can be used as long as we don't overuse it
- 10. dams are made to use flowing water into energy
Down
- 1. Can only be used for a certain time
- 2. energy from the sun
- 3. gases that became trapped in rock formations
- 4. to provide light and heat or to work machines
- 6. extracted heat formed within Earth
- 9. living or recently dead organic material that can be used as fuel