Across
- 2. Energy conversions that occur when a car engine burns gasoline
- 4. one proton and one electron is what is in these
- 7. light and heat given off from the sun
- 10. a rod made from a neutron absorbing substance
- 11. substance that provides energy such as heat, light, motion or electricity
- 13. 7% of coal is used in this
- 14. 26%of US oil is used in this
- 15. mixture when you add alcohol to gasoline
- 16. a pollution causing nonrenewable energy
- 17. 61% of US oil is used in this
- 19. 1%of US coal is used in this
- 20. refined petroleum used for combustion engines in vehicles
- 22. energy made from things like wood, plant parts, manure and food wastes
- 24. a factory in which crude oil is heated and separated into fuels and the other product
- 25. the act of reducing energy
- 27. compounds that are made from oil
- 28. can be remade in a relatively short time
- 29. this occurs when there is excess heat caused by a series of explosions
Down
- 1. a machine used for continuous power that has blades
- 3. the combination of common nuclea
- 5. energy produced by flowing water from a resevoir
- 6. subatomic particle found in the nucleus of every atom
- 8. These form when the carbon and hydrogen atoms combine.
- 9. splitting of atoms
- 12. 13% of US coal is used in this
- 16. cannot be replenished or remade in a small amount of time
- 18. amount of energy used to preform or work
- 21. energy this only works when the sun is shining
- 23. heat from earth's interior
- 26. Chemical compounds that contain carbon and hydrogen atoms