Across
- 3. a fossil fuel
- 4. energy from hot rocks
- 9. uses energy from the sun to heat water
- 10. converts sunlight to electricity
- 12. from fossil fuels causes acid rain
- 14. fuel that is nonrenwable but does not make greenhouse gas
- 15. most energy stores used to generate this
- 18. energy from moving water in the sea
- 19. energy used twice a day in oceans due to the moon
Down
- 1. fuel made from plants and animals eg wood
- 2. a fossil fuel
- 5. energy from falling water eg dams
- 6. fuel that will eventually run out
- 7. a green house gas made by fossil fuels
- 8. a fossil fuel
- 11. fuels made millions of years ago
- 12. energy from the sun
- 13. energy stores that are easy to use all the time
- 16. energy that can be replaced and reused
- 17. energy from turbines in the sea or on hills