Across
- 3. happens when brakes on a car are applied
- 4. law that says energy cannot be created or destroyed only transferred
- 6. argument against nuclear fuels in case of accidents
- 7. energy store that increases as speed increases
- 9. converts sunlight to electricity on rooves
- 10. argument for biofuels
- 11. the source of most of our energy stores
- 12. is the rate of transfer of energy
- 13. biofuel gas made from animal waste
- 16. energy stored in a stretched spring
Down
- 1. the source of heat for geothermal energy
- 2. absorbs IR radiation to heat water for homes
- 5. energy stored in water behind a dam
- 8. is red for hot and blue for cold
- 14. useful output divided by total input
- 15. causes tidal energy