Weather Fronts

Large pockets of air that may cover ten thousand or more square miles are called______________________.

• air masses

• weather fronts

• stationary fronts

• pressure zones

Tags

NGSS.MS-ESS2-5

Air masses are named for _______________________.

• The type of air they contain

• where they form

• people

• countries

Low pressure air masses are called _______________________.

• anticyclones

• cyclones

• occluded fronts

• stationary fronts

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

A cold front usually brings what kind of weather?

• sunny and fair

• rain and/or thunderstorms

• snow

• cool and dry air

Tags

NGSS.MS-ESS2-5

When a cold front or a warm front stays in place for several days without invading another front, it is called a____________________.

• warm front

• cold front

• occluded front

• stationary front

Tags

NGSS.MS-ESS2-5

When two air masses meet, what happens?

• it always rains

• the weather changes and precipitation usually occurs

• it becomes sunny and mild weather

• the weather will become colder

Tags

NGSS.MS-ESS2-5

Warm air is ______________________.

• less dense than cold air

• lighter than cold air

• thinner than cold air

• all of the answers

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

When a warm and a cold air mass meet, what happens?

• The warm air would slide up and over the cold air.

• The heavier cold air would sink and slide in under the warm air.

• Some form of precipitation would occur.

• all of the answers

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Cooler air can hold less water than warm air.

• false

• true

Tags

NGSS.MS-ESS2-4

Air masses are different in many ways. Which of these is NOT different?

• ratio of oxygen/nitrogen

• atmospheric (air) pressure

• temperature

• moisture contents

Tags

NGSS.MS-ESS2-5