Across
- 5. breaking apart
- 6. gasses that form deep underground and used as fuel
- 14. putting together
- 15. chemicals that contain hydrogen and carbon
- 16. the part of a nuclear power plant were the reaction occures
- 19. the least common use of coal
- 20. a resource that cannot be renewed in a relatively short period of time
- 23. to reuse an object and material to create something new
- 24. not used much because it is not readily available
- 26. a substance that provides energy
- 27. rods full of uranium-235
- 28. wood, plant parts, and food wastes that can be used as fuels
- 29. relating to the nucleus of an atom
- 30. heat from inside the earth
- 31. what most of the oil is used for
Down
- 1. 13% of coal is used for _______
- 2. a factory where crude oil is separated from other minerals and then heated up
- 3. resource that can be replenished in a relatively short period of time
- 4. what most of the coal is used for
- 7. light and heat given off by the sun
- 8. the device that is pushed by water or wind to produce energy
- 9. the energy conversions that occur when a car engine burns gasoline
- 10. a mixture of gasoline and alcohol
- 11. compounds made from oil
- 12. energy produced by flowing water
- 13. something that gives off ionizing radiation
- 17. energy used from the suns rays
- 18. a layer of material that traps air to help block the transfer of heat
- 21. reducing energy use
- 22. when the uranium rods start to melt
- 25. percentage of energy used to perform the work