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40 Cards in this Set
- Front
- Back
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small piece of ice tossed up and down inside a cloud, forming several layers of ice, until it is too heavy and falls to earth
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hail
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amount of water vapor that the air can hold at a given temperature
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relative humidity
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falling ice crystals melt, hit the earth as liquid rain, but refreeze as soon as they land
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freezing rain
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lowest possible temperature at which air is able to hold all of its water vapor
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dew point
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falling ice crystals melt into raindrops, then refreeze and land on earth as tiny pieces of ice
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sleet
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water vapor that condenses and forms frozen water on the ground
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frost
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falling ice crystals melt slightly, stick, and freee together into snowflakes
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wet snow
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water vapor that condenses to form liquid water on the ground
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dew
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an ice crystal in a cloud becomes too heavy, falls, melts, and lands on the earth as liquid water
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rain
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When air is saturated, the humity is what percent?
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100 percent humidity
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process in which water vapor leaves the air and changes into liquid water
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condensation
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rapid expansion of superheated air which causes shock waves we hear
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thunder
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puffy, bulgy clouds
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cumulus
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opposite electrical charges which build up in very tall clouds produce this
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lightning
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term used to describe a cloud from which rain is falling
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nimbus
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broad flat top of a cumulonimbus cloud
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anvil
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layers of flat clouds
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stratus
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thunderhead cloud is also called
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cumulonimbus
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wispy, curly clouds very high in sky
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cirrus
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clouds made of very small ice crystals
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cirrus
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sheets of clouds that often produce rain
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stratus
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boundary between two air masses
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front
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type of storm that packs the most destructive power into the smallest space
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tornado
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row of thunderheads that build up in the front of advancing cold air
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squall line
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The air that we live in receives most of its warmth from _____.
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the ground
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calm region of very low air pressure in the center of a tornado
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eye
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type of alert meteorologists issue if a tornado has been spotted
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tornado warning
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Be able to label the the polar easterlies, trade winds, and prevailing westerlies on a diagram of the earth.
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See Text p. 209
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Be able to list 5 precautions you should take during a thunderstorm.
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see textbook p. 237
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Be able to answer and discuss the following observation. See text p. 211 (bottom) - 212
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If at a to be named location, the temperature is 75 degrees F and the relative humidity is 100 and in another location, the temperature is 40 degrees F and the relative humidity is 100 percent, is the amount of water vapor in the two places the same? Why or why not?
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What causes the different seasons?
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The tilt of the earth's axis.
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What produces the earth's winds?
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Temperature differences
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Name the imaginary line that runs through the earth from Nourth Pole to South Pole.
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the axis
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