Science 30 Unit D

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Across
  1. 1. gas a gas that traps heat in the atmosphere, contributing to global warming
  2. 4. fuel a natural fuel such as coal or gas formed from ancient organic matter
  3. 7. cell a device that converts chemical energy from a fuel into electricity
  4. 8. a device that converts mechanical energy into electrical energy
  5. 10. footprint the total greenhouse gas emissions caused by an individual or process
  6. 11. of formation the energy change when one mole of a compound forms from its elements
  7. 12. the combining of small atomic nuclei to form a larger nucleus and release energy
  8. 14. resource a resource that can be naturally replenished quickly
  9. 15. the SI unit of energy
  10. 17. a machine that converts fluid motion into mechanical energy
  11. 18. energy energy from heat stored beneath Earth's surface
  12. 20. cell a device that converts solar energy directly into electrical energy
  13. 22. the ratio of useful output energy to input energy
  14. 24. (kWh) a unit of energy equal to one kilowatt of power used for one hour
  15. 25. organic material used as a renewable energy source
Down
  1. 2. meeting present needs without compromising future generations' ability to meet theirs
  2. 3. the measurement of heat transfer in physical and chemical processes
  3. 5. law the total enthalpy change is the same regardless of the path taken
  4. 6. transformation the process of converting energy from one form to another
  5. 9. resource a resource that cannot be replaced within a human timescale
  6. 13. the rate at which energy is transferred or converted
  7. 16. the splitting of a large atomic nucleus into smaller parts, releasing energy
  8. 19. the total heat content of a system
  9. 21. energy energy harnessed from the rise and fall of tides
  10. 23. a chemical reaction with oxygen that releases energy