Chapter 18 Vocabulary

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Across
  1. 2. Thermal energy never spontaneously flows from a cold object to a hot object.
  2. 3. A line on a weather map that connects places that have the same atmospheric pressure.
  3. 5. Energy can neither be created nor destroyed.
  4. 7. A large body of air with roughly the same temperature and moisture conditions throughout.
  5. 8. The current state of the atmosphere.
  6. 9. The force per unit area exerted against a surface by the weight of the air above that surface.
Down
  1. 1. The study of heat and its transformation to different forms of energy.
  2. 3. The total of all molecular energies, kinetic plus potential, that are internal to a system.
  3. 4. A boundary or transition zone between two air masses with different properties, such as temperature and humidity.
  4. 6. A process, often of fast expansion or compression, wherein no heat enters or leaves a system.