Across
- 3. Liquid fossil fuel oil
- 8. A resource that is either always available or is naturally replaced in a relatively short time
- 9. Energy The original source of energy in wind
- 11. What energy uses water
- 12. carbons Chemicals that contain carbon and hydrogen
- 13. Vessel The part of a nuclear reactor where nuclear fission occurs
- 14. Breaking apart
- 16. A natural resource that is not replaced in a useful time frame
- 17. Coming together
- 19. The percentage of energy that is used
- 23. What uses the most electricity in the U.S.
- 24. energy Heat from the Earth's interior
- 25. What uses the most oil in the U.S.
- 26. Fuels An energy rich substance formed from the remains of organisms
- 27. Conservation Reducing energy use
- 28. flowing water
Down
- 1. A substance that provides energy
- 2. The process of burning a fuel
- 4. Power Source that uses the most coal in the U.S.
- 5. Plant parts, manure, food, and wood wastes that can be used as fuels
- 6. Compounds made of oil
- 7. Mixing alcohols to gasoline makes it
- 10. Oil is separated
- 15. Traps or air to help block the transfer of heat
- 18. a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.
- 20. Rod A cadmium rod used in a nuclear reactor to absorb neutrons from fission reactions
- 21. A dangerous condition in which fuel rods inside a nuclear reactor melt
- 22. How wind, flowing water, and tides are used to produce electricity