Across
- 4. Device converting movement to electricity
- 7. Heat from inside Earth
- 9. Liquid fossil fuel
- 10. Heat energy
- 16. energy in an object that is stretched or compressed
- 17. Moving air turns turbines
- 18. Uses uranium
- 19. Energy carried by electric current
- 20. Can be naturally replenished in a human lifetime
- 21. produce this energy
- 22. energy in battery/food/fuel
Down
- 1. Change from one energy form to another
- 2. energy for an object that is high up
- 3. Energy from the Sun
- 5. Energy from flowing water
- 6. Energy from the sea
- 8. Useful output ÷ total input
- 11. Fossil fuel for heating/cooking
- 12. Energy source that will run out
- 13. Fossil fuel from dead organisms
- 14. Plant material fuel
- 15. Energy of movement