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13-1 Air Masses and Fronts
Chapter 13 Section 1
13
Science
6th Grade
04/14/2009

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Cards

Term
Scientists classify air masses according to ____ and _____.
Definition
temperature and humidity
Term
What does maritime tropical mean?
Definition
warm and humid (west coast of U.S.)
Term
What does maritime polar mean?
Definition
cold and humid
Term
What does continental tropical mean?
Definition
warm and dry (example Northern Mexico)
Term
What does Continental polar mean?
Definition
cold and dry (northern U.S. in winter)
Term
What is a cold front?
Definition
A rapidly moving cold air mass runs into a slowly moving warm air mass.
Term
What is a warm front?
Definition
A moving warm air mass collide with a slowly moving cold air mass.
Term
What is a stationary front?
Definition
A cold air mass and a warm air mass meet and remain stalled over an area (no movement)
Term
What is an occluded front?
Definition
A warm air mass is caught between 2 cooler air masses.
Term
What type of weather is associated with a cyclone?
Definition
Cyclone is decreasing air pressure and is associated with storms and precipitation.
Term
t/f
winds in an anticyclone spin CLOCKWISE in the northern hemisphere.
Definition
true
Term
what type of weather is associated with an anticyclone?
Definition
With anticyclones you can expect a dry, clear day.
Term
What is the difference between cyclones and anticyclones?
Definition
The direction of the winds.
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