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40 Cards in this Set

  • Front
  • Back
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
amount of water vapor that the air can hold at a given temperature
relative humidity
falling ice crystals melt, hit the earth as liquid rain, but refreeze as soon as they land
freezing rain
lowest possible temperature at which air is able to hold all of its water vapor
dew point
falling ice crystals melt into raindrops, then refreeze and land on earth as tiny pieces of ice
water vapor that condenses and forms frozen water on the ground
falling ice crystals melt slightly, stick, and freee together into snowflakes
wet snow
water vapor that condenses to form liquid water on the ground
an ice crystal in a cloud becomes too heavy, falls, melts, and lands on the earth as liquid water
When air is saturated, the humity is what percent?
100 percent humidity
process in which water vapor leaves the air and changes into liquid water
rapid expansion of superheated air which causes shock waves we hear
puffy, bulgy clouds
opposite electrical charges which build up in very tall clouds produce this
term used to describe a cloud from which rain is falling
broad flat top of a cumulonimbus cloud
layers of flat clouds
thunderhead cloud is also called
wispy, curly clouds very high in sky
clouds made of very small ice crystals
sheets of clouds that often produce rain
boundary between two air masses
type of storm that packs the most destructive power into the smallest space
row of thunderheads that build up in the front of advancing cold air
squall line
The air that we live in receives most of its warmth from _____.
the ground
calm region of very low air pressure in the center of a tornado
type of alert meteorologists issue if a tornado has been spotted
tornado warning
Be able to label the the polar easterlies, trade winds, and prevailing westerlies on a diagram of the earth.
See Text p. 209
Be able to list 5 precautions you should take during a thunderstorm.
see textbook p. 237
Be able to answer and discuss the following observation. See text p. 211 (bottom) - 212
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?
What causes the different seasons?
The tilt of the earth's axis.
What produces the earth's winds?
Temperature differences
Name the imaginary line that runs through the earth from Nourth Pole to South Pole.
the axis