Across
- 2. what happens when fuel creates to much heat
- 7. can't be replenished in short amount of time takes millions and billions of years
- 9. two piont two percent of this fuel powers the u.s.
- 10. would, plant parts, manure, and food waste that can be as fuel
- 12. geothermal energy
- 17. oil can be used for this
- 20. the main cause of the urban heat island effect
- 21. how does a meltdown occur
- 22. what is gashol
- 23. you have to drill down to get hot water and steam to power a turbine
- 25. a factory wich crude oil is heated and steamed fuels
- 26. compound made from oil
- 27. wind blows against a turbine which connects to a speed drive shaft to energy goes throough gear box makes which makes energy
- 28. nine point nine percent of this fuel powers the u.s.
Down
- 1. largest source of fuel in u.s.
- 3. what is coal used for thirteen percent what % of coal mined goes to different countries
- 4. what is oil mainly used for
- 5. Nine Three percent of this fuels the U.S.
- 6. factory crude oil is heated and separated
- 8. heat from earth's interior
- 11. what are 3 types of fossil fuel
- 13. can have replenished in short period of time
- 14. why is it not nuclear fusion currently used as an energy
- 15. a substance that provides energy
- 16. chemical compound that contains carbon hydrogen atoms
- 18. turn of the lights
- 19. light and heat given off by that sun
- 24. 3 ways to converse at home