Fronts Warm and Cold

What is a cold front?

• the leading edge of a cooler mass of air at ground level that replaces a warmer mass of air and lies within a pronounced surface trough of low pressure.

• the boundary between a mass of warm air and a retreating mass of cold air. At constant atmospheric pressure, warm air is less dense than cold air,

• Sometimes a cold front follows right behind a warm front. A warm air mass pushes into a colder air mass (the warm front), and then another cold air mass pushes into the warm air mass (the cold front). Because cold fronts move faster, the cold front is likely to overtake the warm front

• a cold front or warm front stops moving. This happens when two masses of air are pushing against each other, but neither is powerful enough to move the other.

Tags

NGSS.MS-ESS2-5

A _____________ forms when a cold front or warm front stops moving. This happens when two masses of air are pushing against each other, but neither is powerful enough to move the other.

Tags

NGSS.MS-ESS2-5

Draw a warm front

Tags

NGSS.MS-ESS2-5

What front is this storm part of?

• Occluded front

• Warm Front

• Stationary Front

• Cold Front

Tags

NGSS.MS-ESS2-5

Select ALL of the places where there is a warm front.

• Michigan

• Texas

• Pennsylvania/New Jersey

• Utah/Colorado.

Tags

NGSS.MS-ESS2-5

Draw a cold front.

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

The edge between two air masses is called a_______________.paragraph 8

• wedge

• line

• front

• boundary

Tags

NGSS.MS-ESS2-5

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

NGSS.MS-ESS2-6

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