6th chapter 9 Weather

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Across
  1. 1. clouds form when water vapor ___ to form liquid water or ice cyrstals
  2. 5. takes images of Earth from space – looks at storms and cloud formation
  3. 7. when water vapor converts directly to an ice crystal , the precipitation is called this
  4. 11. when snow falls, the amount is actually ___time the amount it would have rained, so 20 cm of snow is equal to 2cm of rain
  5. 13. violent winter storm, freezing temps, blowing snow
  6. 16. lines on a weather map that shows areas of the same temp
  7. 20. an air mass that forms over land
  8. 22. maritime air masses bring ___ weather
  9. 23. small storm of thunder and lightning
  10. 27. stand alone machine that can measure wind speed, temps, humidity, etc
  11. 28. a boundary where unlike air masses meet is called a _____
  12. 29. tornados form in the ___ type of cloud as a thunderstorm
  13. 31. the small lines or feathers at the end of the line showing wind direction on a weather condition map indicate ___ ___
  14. 35. used to measure how much rain falls
  15. 37. intense tropical storm with winds exceeding 119km/hr
  16. 38. rain that falls as water then passes through a freezing layer in the atmosphere
  17. 39. swirling center of low pressure causes clouds and wind and rain
  18. 44. rapid whirling funnel shaped cloud reaches the ground from a storm cloud
  19. 46. lines on a weather map that shows area of the same air pressure
  20. 47. temp at which water vapor condenses
  21. 48. when a warm air mass is caught between 2 cold
  22. 49. when sparks form due to positive and negative charges building up in the atmosphere
  23. 50. water moves through the atmosphere in the ___ ____
  24. 51. continental air masses bring ___ weather
Down
  1. 2. when a cold air mass meets a warm air mass, neither have the force to move the other
  2. 3. at a cold front, cold air meets warm air and goes ___ it
  3. 4. at a warm front, warm air meets cold air and goes ___ it
  4. 6. an air mass from a warm area
  5. 8. clouds with this prefix mean “rain”
  6. 9. when a cold air mass moves in and pushes warm air up and away
  7. 10. any form of water that falls from the sky
  8. 12. wispy clouds, feather, high altitudes
  9. 14. pellet of ice larger than 5mm
  10. 15. clouds that look like a blanket, blocking out blue sky and sunlight
  11. 17. rain that falls as liquid then freezes when it contacts a colder surface
  12. 18. parcel of air with the same temp and humidity
  13. 19. cold dry air coming from Canada that affects the northern US comes from ___ ____ air masses
  14. 21. hurricanes with swirling winds can drive water onto land increasing the height of water in that are- it is called this- 2 words
  15. 24. the percentage of water vapor in the air compared to what it can hold at that temp
  16. 25. sent into the atmosphere to measure windspeed, temps, humidity, etc
  17. 26. an air mass that forms over water
  18. 30. the major difference between a cyclone and anticyclone is the direction of their ____
  19. 31. when a warm air mass moves in slowly, bringing warm humid air
  20. 32. an air mass from a cold area
  21. 33. long period of scarce rainfall due to dry weather systems
  22. 34. scientists that analyze weather
  23. 36. area of high pressure center- causes dry clear weather
  24. 39. clouds that look like cotton balls
  25. 40. two things required to make clouds- cooling air and the presence of ____ in the air
  26. 41. used to measure relative humidity
  27. 42. the amount of water vapor in the air at that time
  28. 43. overflow of water due to a lot of rainfall
  29. 45. violent disturbances in the atmosphere