Air Masses and Source Regions

Which major type of air mass typically brings cool, dry weather?

• maritime polar

• continental polar

• maritime tropical

Tags

NGSS.MS-ESS2-5

Study the image, which shows an air mass moving into a region. What type of weather will this region most likely experience due to the incoming air mass?

• thick fog with cold air

• sunny skies with warm air

• thunderstorms and heavy rain

Tags

NGSS.MS-ESS2-5

Study the image of an air mass. Which major type of air mass is moving into the area?

• maritime polar

• continental polar

• maritime tropical

Tags

NGSS.MS-ESS2-5

Study the image. What type of weather are the upper part of Africa and the lower half of Asia most likely experiencing, based on the image?

• rainfall

• dry heat

• cold breezes

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Which kind of weather usually forms over the northwest United States in the summer because of maritime polar air masses?

• fog

• dry heat

• heavy snow

Tags

NGSS.MS-ESS2-5

What causes air masses to move?

• A difference in air pressure and temperature occurs.

• Weather conditions change rapidly to produce storms.

• Long, narrow bands of wind blow in the upper atmosphere.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Study the image, which describes how rapid changes in weather conditions occur. Based on the arrows, what does the image represent?

• air masses are barely moving

• air masses are colliding with each other

• Jet streams are forming in the upper atmosphere

Tags

NGSS.MS-ESS2-5

Study the image. Based on the arrows, in which direction are air masses moving?

• from west to east

• from north to south

• toward the equator

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Study the image, which shows warm and cold air fronts. At which point does warm air begin to rise before colliding with cold air?

• 1

• 2

• 3

Tags

NGSS.MS-ESS2-5

Study the image. At which point is cool air circulating beneath warm air?

• 1

• 2

• 3

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6