Across
- 7. fuels your fire places
- 8. refined petroleum used as fuel for old cars and big trucks
- 9. can be used up.
- 10. energy from the sun.
- 12. burned for the choo choos.
- 13. fuel from plants and organic stuff.
Down
- 1. energy from moving air.
- 2. energy from falling water.
- 3. By-product of use of uranium in nuclear power plants
- 4. cannot be used up.
- 5. by-product of desiel production
- 6. energy from the earth.
- 11. splits radioactive metals atoms to make power
- 14. M'urica