Unit 5: Atmosphere and Weather

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Across
  1. 4. the source region for cold air masses
  2. 5. a gas molecule that is made up of three oxygen atoms
  3. 6. violent windstorm that take the formation of a rotating column of air
  4. 8. a mixture of gases that surrounds a planet, such as Earth
  5. 13. the transfer of heated by mass movements or circulation
  6. 14. an immense body of air that is characterized by similar temperatures and moisture
  7. 17. forms when cold dense air moves into a region occupied by warmer air
  8. 18. the spinning of the Earth around its axis
  9. 19. tropical cyclone that produce sustained winds of at least 119 km per hour
  10. 20. the coldest layer of the atmosphere
Down
  1. 1. produces precipitation over a large area for an extended period of time
  2. 2. the color of the sky due to scattering
  3. 3. a boundary that separates two air masses of different properties
  4. 7. air masses that form over the ocean
  5. 9. a vertical cylinder of rotating air that develops in the updraft of a thunderstorm
  6. 10. the transfer of heat through matter by molecular activity
  7. 11. makes up 78% of the atmosphere
  8. 12. includes all forms of energy that travel through space as waves
  9. 15. primary energy source for Earth
  10. 16. one of the three main stages of a thunderstorm