Across
- 4. - example of a fossil fuel
- 8. - control what cell does
- 10. - where energy is released in a cell
- 11. - energy resources that cannot be replaced quickly
- 14. - increases when fossil fuels are burned
- 15. - energy from wind
Down
- 1. - formed from remains of plants and animals
- 2. - energy resources that can be replaced quickly
- 3. - controls what goes in and out of a cell
- 5. - energy from sun
- 6. - energy from water
- 7. - something of value due to it's usefulness
- 9. - example of a fossil fuel
- 12. - example of a fossil fuel
- 13. - energy from crops and plants