Air Masses and Fronts
Flashcard
•
Science
•
6th - 8th Grade
•
Hard
Barbara White
FREE Resource
Student preview
15 questions
Show all answers
1.
FLASHCARD QUESTION
Front
Air Mass Noun
[air mas]
Back
Air Mass
A large body of air with uniform temperature and humidity characteristics, acquired from its underlying source region.
Example: This map shows large bodies of air, called air masses, which get their temperature and moisture from where they form over land or sea, and in cold or warm regions.
2.
FLASHCARD QUESTION
Front
Source Region Noun
[sors ree-juhn]
Back
Source Region
The specific geographic area over which an air mass forms and acquires its distinct properties of temperature and moisture.
Example: A source region is a large area, like northern Canada or the tropical Atlantic Ocean, where an air mass forms and gets its temperature and moisture.
3.
FLASHCARD QUESTION
Front
Maritime (m) Adjective
[mair-i-tahym]
Back
Maritime (m)
A classification for a moist air mass that originates over an ocean or other large body of water.
Example: This map shows that maritime (m) air masses, both polar (mP) and tropical (mT), form over the ocean and move onto land.
4.
FLASHCARD QUESTION
Front
Continental (c) Adjective
[kon-tuh-nen-tl]
Back
Continental (c)
A classification for a dry air mass that originates over a large landmass, away from significant moisture sources.
Example: This map shows continental air masses (c) forming over land, which makes them dry. It contrasts them with maritime air masses (m) forming over water.
5.
FLASHCARD QUESTION
Front
Maritime Tropical (mT) Noun
[mair-i-tahym trop-i-kuhl]
Back
Maritime Tropical (mT)
A type of air mass that is characteristically warm and moist because it forms over warm ocean waters.
Example: This map shows that warm, moist Maritime Tropical (mT) air masses form over southern oceans and move north, bringing warm, humid weather to land.
6.
FLASHCARD QUESTION
Front
Continental Polar (cP) Noun
[kon-tuh-nen-tl poh-ler]
Back
Continental Polar (cP)
A type of air mass that is characteristically cold and dry because it forms over cold continental land areas.
Example: This map shows a Continental Polar (cP) air mass forming over cold land in Canada and moving south, bringing cold, dry weather to the U.S.
7.
FLASHCARD QUESTION
Front
Air Pressure Noun
[air presh-er]
Back
Air Pressure
The force exerted onto a surface by the weight of the air above it; differences in pressure cause wind.
Example: This diagram shows that air pressure, the weight of air, is highest at sea level and decreases as altitude increases because there are fewer air molecules.
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