Across
- 3. breaking apart
- 4. when fuels contain stored chemical energy
- 6. can be remade in relatively short amount of time
- 8. obtaining electricity through sun
- 9. cannot be remade in short amount of time
- 12. an energy rich substance
- 13. object that produces electricity from wind
- 16. slow down chain reactions
- 20. light and heat given off by the sun
- 21. saving energy
- 23. what most of the coal used for
- 25. replacement of incandescent bulbs
- 26. something that makes energy
- 27. obtaining electricity through water
- 28. coming together
- 29. split during nuclear fission
Down
- 1. make up fossil fuels
- 2. object that produces electricity from water
- 5. what oil is mainly used for
- 7. add gasoline and alcohol
- 10. factory where oil is put into products
- 11. electricity from flowing water
- 14. compounds that come from oil
- 15. the percent saved
- 17. heat from Earth's interior
- 18. when fuel rods generate too much heat
- 19. solid fossil fuel formed by the plant remains
- 22. wood plants manure food wastes that can be used as fuels
- 24. traps warm air inside of house