Air Mases and Fronts
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| causes changes in the weather | the movement and interaction of air masses
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| a large body of air that has similar temperature and moisture throughout | air mass
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| (T), forms over the tropics, warm air | tropical air mass
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| (m), forms over water, wet air | maritime air mass
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| (c), forms over land, dry air | continental air mass
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| (P), forms over the polar regions, cold air | Polar air mass
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| northern Canada, North Atlantic Ocean, North Pacific Ocean | places where polar air masses form and cause cold winter weather in the U.S.
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| A warm air mass that influences the weather in the U.S. and develops over land | continental tropical (cT)
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| air masses that cause hurricanes and thunder storms that occur on the East Coast and in the Midwest | maritime tropical (mT)
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| What happens when two types of air mases meet | warm air rises
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| The boundary between air masses of different densities and usually different temperatures | a front
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| A warm air mass that moves over a cold, denser air mass | warm front
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| A warm air mass that is caught between two colder air masses | occluded front
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| A cold air mass that meets a warm air mass, but the two remain separated | stationary front
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| A cold air mass that moves under a warm, less dense air mass | cold front
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| causes thunderstorms and heavy rain | cold front
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| causes drizzly rain, and then clear, warm weather | warm front
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| causes cool temperatures and large amounts of rain and snow | occluded front
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| stationary front | causes many days of cloudy, wet weather
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| An area in the atmosphere that has lower pressure than the surrounding areas, with winds spiraling toward the center is | a cyclone
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| A rotation of air around a high pressure center is called | an anticyclone
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| when colder, dense air spirals out of the anticyclone, and moves toward an area of low pressure | How a cyclone is formed
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| How a cyclone affects the weather | It causes stormy weather
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| How an anticyclone affects the weather | It causes dry, clear weather
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Created by:
chemingway
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