Across
- 2. a process of petroleum refining, in which a chemical mixture is separated into its other components
- 3. an energy source gathered by individuals for their own immediate needs (sticks, straw, etc)
- 4. an array of flat, movable mirrors
- 11. the increase in the temperature of a body of water
- 12. a form of cellular respiration in which decomposers get their energy from the breakdown of glucose
- 15. the splitting of an atomic nucleus into two smaller fragments
- 17. the spontaneous release of material from the nucleus of radioactive isotopes
- 19. electrical cells that allow the light energy of the sun to be converted into electricity
- 22. a relatively soft coal containing a tar-like substance called bitumen
- 23. a gooey, black, high-sulfur, heavy oil extracted from tar sand then upgraded to synthetic fuel oil
- 24. a type of organic matter that is formed over thousands of years from the partial decomposition of plants
- 26. a soft, brownish-black form of coal that has more carbon than peat, but less carbon than bituminous coal
- 27. a dramatic change in water temperature that can kill organisms
- 28. the amount of solar radiation reaching an area (measured in Watts/sq meter)
Down
- 1. chemicals that cause or promote cancer
- 3. a form of natural gas (mostly methane) found underground in shale rock
- 5. used to store the waste made from separating minerals from rocks
- 6. the production of two useful forms of energy, from the same fuel source
- 7. tax breaks and payments given to companies that work to be more environmentally friendly
- 8. a thick and gooey liquid consisting of hundreds of different combustible hydrocarbons
- 9. any of various volatile, highly flammable liquid hydrocarbon mixtures
- 10. a dense shiny coal that has high carbon content and little volatile matter that burns with a clean flame
- 13. an organic material that can be used as an energy source
- 14. organic compounds made up of hydrogen and carbon atoms
- 16. the procedure of creating fractures in rocks by injecting fluid into cracks to force them open
- 18. Corporate Average Fuel Economy: standards that regulate how far our vehicles must travel on 1 gallon of fuel
- 20. used to describe energy sources that are non-depletable, but are not always available 24/7
- 21. Volatile Organic Compounds: emitted as gases from certain solids or liquids
- 22. fuels such as ethanol or methanol, that are created from the fermentation of plants
- 25. a process in which an electrical current is passed through a compound to release ions