Unit 8 Energy Use, Impacts, and Alternatives

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Across
  1. 5. (Two Words) using the movement of tidal water to generate electricity
  2. 9. (Two Words) an expression of how much of the energy put into a system actually does useful work
  3. 10. (Two Words) energy that is produced from biomass material
  4. 13. (Two Words) an icelike solid that consists of molecules of methane within a crystal network of water molecules
  5. 16. (Three Words) uses technology to collect, move, and store heat derived from the sun
  6. 20. (Two Words) heat produced deep beneath Earth’s surface by high pressure combined with the breakdown of radioactive elements
  7. 23. (Four Words) a process that converts the thermal energy in ocean water to electrical energy that people can use
  8. 24. (Three Words) a heat-absorbing device, generally consisting of a black metal plate in a flat box with a glass cover
Down
  1. 1. (Three Words) designing a building to collect, store, and distribute the sun’s energy naturally
  2. 2. (Two Words) energy from sources that are nearly always available or are replaced in a relatively short time
  3. 3. energy made available by the flow of an electric charge
  4. 4. (Two Words) energy that an object has because of its position or shape
  5. 6. (Three Words) a technology that uses mirrors to focus sunlight in order to generate electricity
  6. 7. (Two Words) the practice of reducing energy use
  7. 8. (Two Words) the energy that an object has due to its motion
  8. 11. (Four Words) a system that takes advantage of the fact that the temperature of soil a few feet underground stays about the same all year
  9. 12. using the kinetic energy of moving water to turn turbines and generate electricity
  10. 14. (Two Words) energy from sources that cannot be replaced
  11. 15. (Two Words) a device used to generate electricity using hydrogen and oxygen
  12. 17. liquid fuels from biomass sources
  13. 18. (Two Words) a device that converts the wind’s kinetic energy into electrical energy
  14. 19. a dark, liquid fossil fuel made up mostly of hydrocarbons
  15. 21. the process in which a fuel burns because it combines rapidly with oxygen
  16. 22. (Two Words) a device in which solar energy is converted directly into electricity
  17. 25. the ability to do work or cause a change