Term
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Definition
water vapor cools and
changes from a gas to a liquid
(in the atmosphere) |
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Term
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Definition
occurs when water, in the form of
rain, snow, sleet, or hail, falls from the clouds to the ground |
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Term
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Definition
water, usually from precipitation, that
flows across the ground and collects in rivers, streams, and eventually back in the ocean |
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Term
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Definition
| occurs when liquid water changes into water vapor, which is a gas |
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Term
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Definition
| the amount of water vapor the air can actually hold |
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Term
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Definition
| the amount of water that is really in the air (%) |
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Term
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Definition
is the change of state from a gas
to a liquid. Condensation occurs when
saturated air cools. (100% humidity) |
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Term
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Definition
| is the temperature where condensation can occur. At its dew point, air is saturated. |
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Term
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Definition
| Examples: glass of ice water and dew on the grass in the morning |
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Term
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Definition
fluffy and often large (like cotton
balls). Can produce storms when they get large. |
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Term
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Definition
cover large areas (like a blanket) and
cause fog when they are near the ground. |
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Term
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Definition
high feathery clouds, indicate change is
coming. |
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Term
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Definition
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Term
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Definition
form when water droplets in the clouds
become too large for the clouds to hold (usually 100 times its original size) |
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Term
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Definition
forms when water vapor changes
directly to a solid (crystal) in the clouds--- due to below freezing temperatures |
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Term
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Definition
| form when rain falls through a layer of freezing air, causing the rain to freeze on the way down. |
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Term
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Definition
During a thunderstorm: when updrafts
carry rain up into the clouds before it can come down, it freezes and hail forms. The more updrafts, the larger the hail pieces. Eventually the hail falls to the Earth. |
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Term
What are the 4 types of precipitation?
How does each one form (pg. 488)? |
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Definition
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Term
What are the 4 types of weather
fronts? |
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Definition
| Cold front, Warm front, Occluded front, Stationary front |
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Term
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Definition
forms when cold air moves under
warm air |
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Term
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Definition
forms where warm air moves over cold, denser air. In a warm front, the
warm air gradually replaces the cold air. Drizzly rain is usually followed by clear and warm weather. |
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Term
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Definition
forms when a warm air mass
is caught between two colder air masses. The coldest air mass moves under and pushes the warmer air mass up. The coldest air mass then moves forward until it meets a cold air mass that is warmer and less dense. The colder of these two air masses moves under and pushes up the
warmer air mass. Cool temperatures occur and large amounts of rain or snow. |
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Term
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Definition
| forms when a cold air mass meets a warm air mass. In this case, both air masses do not have enough force to lift the warm air mass over the cold air mass. So, the air masses remain separate and often brings days of cloudy or rainy weather. |
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Term
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Definition
is an area of lower pressure than the
surrounding areas and has winds that spiral toward the center. |
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Term
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Definition
| is an area of high pressure where air moves apart, or diverges, and sinks. |
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Term
Which kind of severe weather is the most
dangerous and why |
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Definition
| Hurricanes! With winds up to 120 mph!!! |
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Term
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Definition
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Term
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Definition
| measures atmospheric pressure |
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Term
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Definition
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Term
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Definition
| cone-shaped cloth bag open at both ends, shows wind direction |
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Term
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Definition
used to find the location, movement,
and amount of precipitation. |
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Term
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Definition
they orbit the Earth and provide
images of weather system. |
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Term
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Definition
are lines that connect areas of equal
pressure. They form closed circles and
represent areas of high or low pressure. |
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Term
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Definition
show us fronts, pressure areas
(low and high), and precipitation. |
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Term
What are the 4 components of the
water cycle (pg. 482)? |
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Definition
| Condensation, Precipitation, Runoff, Evaporation |
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Term
How does temperature affect
humidity (pg. 483)? |
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Definition
When temperature increases: A.H. increases but R.H. decreases
When temperature decreases: A.H. decreases while R.H. increases |
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Term
What is the difference between
humidity (absolute) and relative
humidity? |
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Definition
Absolute humidity - the amount of water vapor the air can actually hold
Relative humidity – the amount of water that is really in the air (%) |
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Term
| What kind of cloud would a thunderstorm for in (pg. 486-487)? |
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Definition
Thunderstorms would occur in cumulonimbus
clouds. |
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Term
| How are clouds classified? |
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Definition
Clouds are classified based on form and
altitude. |
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Term
| What are the three forms of clouds? |
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Definition
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