ES 20.1 Formative

An extremely large body of air that is characterized by similar temperatures and amounts of moisture.

• air mass

• warm front

• cold front

• cyclone

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

T or F: When an air mass moves, it carries its temperature and moisture conditions with it.

• True

• False

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

In addition to their overall temperature, air masses are classified according to...

• the surface over which they form

• the nearest continent to where they form

• the temperature of the area they are moving towards

• the nearest city to where they form

Tags

NGSS.MS-ESS2-5

Which of the following is NOT a basic type of air mass?

• continental polar

• maritime tropical

• continental maritime

• maritime polar

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

These air masses are uniformly cold and dry in winter and cool and dry in summer.

• continental polar

• maritime polar

• continental tropical

• maritime tropical

Tags

NGSS.MS-ESS2-5

Warm air masses loaded with moisture and containing unstable air.

• continental polar

• maritime polar

• continental tropical

• maritime tropical

Tags

NGSS.MS-ESS2-5

Air masses that start as cP and change into relatively mild, humid, unstable air as they move across ocean waters.

• continental polar

• maritime polar

• continental tropical

• maritime tropical

Tags

NGSS.MS-ESS2-5

Warm air masses that only occasionally move outside their source regions. When they do, they can cause extreme heat and drought in the Great Plains.

• continental polar

• maritime polar

• continental tropical

• maritime tropical

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Localized snowstorms associated with cP air masses that move across the Great Lakes in late fall and winter.

• lake effect snows

• air mass weather

• polar fronts

• tropical snows

Tags

NGSS.MS-ESS2-5

T or F: As an air mass moves, its temperature and moisture characteristics never change.

• True

• False

Tags

NGSS.MS-ESS2-5