Across
- 1. is made from thermal
- 5. it needs the sun to power
- 7. it is one of the oldest and largest source
- 10. Flamable gas
- 12. windmills
- 13. oil helps create it
- 14. froms the earths core
- 15. it uses electrons
Down
- 2. helps in a fire
- 3. this crossword word
- 4. it takes a really long time to create
- 6. can power electricity
- 8. we use in are cars
- 9. can be made again
- 11. it changes temperature