Across
- 4. green plants make this while in sunlight
- 7. a machine which converts kinetic energy to electrical energy
- 9. a source from the sun which is essential to a plants growth
- 10. heat energy from the sun
- 13. energy stored up, which hasnt been used yet
- 14. energy stored in batteries
- 17. a dangerously explosive gas but is strill a good energy source
- 18. needed to make things work
- 19. the earths energy source
Down
- 1. a highly dangerous but important type of energy
- 2. energy from movement
- 3. a solid which causes pollution
- 5. an object which converts chemical energy into electrical energy
- 6. energy from the sun
- 8. energy produced in a power stations
- 11. non-renewable fossil fuel
- 12. the measuring unit of energy
- 15. energy used to move metal
- 16. virbration in the air caused by energy
- 17. the wasted part of energy