Precipitation – Flashcards
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what is precipitation
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any form of water that falls from clouds and reaches earth's surface
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is the following sentence true or false? all clouds produce precipitation
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false
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rain
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the most common type of precipitation, they are at least 0.5 millimeters in diameter.
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sleet
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when water droplets fall through a layer of air that is below 0 degrees celsius the freezing point of water. they are ice particles smaller than 5 millimeters in diameter
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hail
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round pellets of ice larger than 5 millimeters in diameter
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snow
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water vapor in a cloud is directly converted into ice crystals. they have an endless number of different shapes and patterns, all with six sides or branches.
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freezing rain
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when water droplets that freeze when they touch a cold surface.
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what are the five types of precipitation
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rain, sleet, snow, hail, and freezing rain
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order the sizes of rain, hail and sleet from smallest to largest
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rain, sleet, hail
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is the following sentence true or false? the most common kind of precipitation is snow
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false
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explain which type of precipitation would cause the most damage when it hits the ground?
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hailstones can do the most damage because they grow to be quite large before hitting the ground and when they do they can cause tremendous amount of damage to crops, buildings, and vehicals
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how do mist and drizzle differ from rain?
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mist and drizzle differ from rain because they are smaller than rain droplets (and usally fal from stratus clouds)
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how can freezing rain cause power failures?
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freezing rain can cause power failures due to the fact that it freezes when touching a cold surface. the weight of this ice can break tree branches and cause them to fall onto power lines, causing power failures
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long periods of unusually low precipitation are called ____________
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droughts
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meteorologists often collect rainfall with a ____________
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rain gauge
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circle the letter of each sentence that is true about cloud seedlings
a.it is the most common way to produce clouds
b. it adds water vapor to the air so clouds will form
c. it adds particles to clouds so water vapor can condense
d. it works on water droplets below 0 degrees celsius
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a.it is the most common way to produce clouds
d. it works on water droplets below 0 degrees celsius
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____________ is a method to modify precipitation by dropping tiny crystals into clouds
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cloud seedling
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what is needed for precipitation to occur?
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cloud droplets or ice crystals must grow heavy enough to fall through the air. one way that clouds droplets grow is by colliding and combining with other droplets.
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how is snowfall measured?
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snowfall is usually measured in two ways; using a simple measuring stick or by melting collected snow and measuring the depth of water it produces
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_____________ is any form of water that falls from clouds and reaches earths surface
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precipitation
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a _____________ is an open-ended can or tube that collects rainfall
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rain gauge
