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the force that is exerted on you by the weight of tiny particles of air
air pressure
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low pressure system usually bring... what kind of days?
cloud and rainy days
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in the northern hemisphere, a low-pressure system forces winds to spiral _____.
counterclockwise
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when air rises, why does it cool?
because the atmosphere gets colder as altitude increases
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high pressure systems usually bring.... what kind of days?
sunny days
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in the northern hemisphere, high pressure sysrem winds spiral _____, mocinf from the cental outward.
clockwise
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what do meteorologists measure air pressure with?
barometer
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land warms and cools ____ than oceans or lakes. It takes __x more heat to warm one gram of water compared to one gram of soil.
faster,5
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at night time, because the ocean's temperature doesnt change very quickly, coastal tempuratures are ___.
warmer
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tempurature is measured with what tool?
thermometer
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why does wind move??
because there are differenced in air pressure, so wind works to balance pressures
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from which pressure does air blow from?
high pressure
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what does winf carry with them?
weather
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what are upper-level winds called? and what do they move? and from which direction does it move it from.?
jet streams.. weather.. west to east
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what is wind speed measured with?
anemometer
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what is wind direction measured with?
wind vane
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the percentage of water vapor in the air relative to the maximum amount that could be present
relative humidity
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when the air, reaches 100% relative humidity , what do you have?
liquid water
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the warmer the air is, the more ___ ___ it is able to hold.
water vapor
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when no water vapor is present, what is the relative humidity percent? but it never gets this low on earth. even in planet's desert, the relative humidity is always at ___%
0%. 1%
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