chapter 21 vocab
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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| air mass | a large body of air throughout which temperature and moisture content are similar
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| anemometer | an instrument used to measure wind speed
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| barometer | an instrument that measures atmospheric pressure
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| cold front | the front edge of a moving mass of a cold air that pushes beneath a warmer air mass like a wedge
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| hurricane | a severe storm that develops over tropical oceans and whose strong winds of more than 120 km/h spiral in toward the intensely low-pressure storm center
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| mid-latitude cyclone | an area of low pressure that is characterized by rotating wind that moves toward the rising air of the central low-pressure region
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| occluded front | a front that forms when a cold air mass overtakes a warm air mass and lifts
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| radiosonde | a package of instruments that is carried aloft by a balloon to measure upper atmospheric conditions, including temperature, dew point, and wind velocity
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| radar | a system that uses reflected radio waves to determine the velocity and location of objects
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| stationary front | a front of air masses that moves either very slow or not at all
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| station model | a pattern of meteorological symbols that represents the weather at a particular observing station and that is recorded on a weather map
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| thermometer | an instrument that measures and indicates temperature
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| thunderstorm | a usually brief heavy storm that consists of rain strong winds lightning and thunder
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| tornado | a destructive rotating column of air that has very high wind speeds and that may be visible as a funnel-shaped cloud
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| warm front | the front edge of an advancing warm air mass that replaces colder air with warmer air
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| wind vaned | an instrument used to determine the direction of the wind
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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