Unit 7: Energy Vocabulary Crossword Puzzle

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Across
  1. 3. converting energy from the sun into power
  2. 9. renewable energy from plants and animalHydrogen Fuel
  3. 10. a machine that transforms rotational energy from a fluid that is picked up by a rotor system into usable work or energy
  4. 12. the transfer of energy by a force acting on an object as it is displaced
  5. 13. Natural gas (also called fossil gas or simply gas) is a naturally occurring mixture of gaseous hydrocarbons consisting primarily of methane in addition to various smaller amounts of other higher alkanes.
  6. 14. type of renewable energy that is generated deep within the earth; produced by the breakdown of radioactive elements and high pressure together
  7. 15. an energy resource that is readily available or that can be replaced in a relatively short time; includes wind, moving water, sunlight, and wood
  8. 16. The ability to do work or cause a change
  9. 18. electricity generated from the energy of moving water
Down
  1. 1. a gas that traps heat near Earth, preventing the heat from radiating back into space; includes carbon dioxide and methane
  2. 2. states that in a chemical reaction energy is neither created nor destroyed
  3. 4. an energy resource that cannot be replaced in a relatively short time; includes fossil fuels and nuclear energy
  4. 5. a carbon-containing fuel formed over millions of years from the remains of living things
  5. 6. a clean fuel that, when consumed in a fuel cell, produces only water
  6. 7. also known as crude oil, or simply oil, is a naturally occurring yellowish-black liquid mixture of mainly hydrocarbons, and is found in geological formations.
  7. 8. mostly the use of wind turbines to generate electricity
  8. 11. zero-emission clean energy source
  9. 17. Coal is a sedimentary deposit composed predominantly of carbon that is readily combustible.