Unit 6: Atmosphere and Weather

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