Crossword Puzzle

Physical Science Mod 1-7


  1. The process by which certain gases (principally water vapor, carbon dioxide, and methane) trap heat that radiates from earth (greenhouseeffect)
  2. water falling from the atmosphere as rain, snow, sleet, or hail (precipitation)
  3. a dense, icy pack of old snow (firn)


  1. The point at which the earth is farthest from the sun (aphelion)
  2. The point at which the earth is closest to the sun (perihelion)
  3. A large body of air with relatively uniform pressure, temperature, and humidity (airmass)
  4. Small, solid fragments of rock and other materials that are carried and deposited by wind, water, or ice. Examples would be sand, mud, or gravel. (sediment)
  5. Rock that forms from molten rock (igneousrock)
  6. The point where an earthquake begins (focus)
  7. the sum of all water on a planet (hydrosphere)
  8. A liquid substance capable of dissolving other substances (solvent)
  9. What causes surface tension? (cohesion)
  10. An instrument used to measure atmospheric pressure (barometer)

["ionosphere", "element", "concentration"]

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