MISC
LAYERS OF THE ATMOSPHERE
FRONTS
MORE FRONTS
LOW+HIGH PRESSURE AIR SYSTEMS
100
the most abundant gas in the atmosphere
nitrogen
100
the layer where weather is found
troposphere
100

A front is a _________ between two air masses.

What is a boundary?

100

This front is represented by red circles.

What is a warm front?

100

Air _____ in the low pressure system.

Air _____ in high pressure.

sinks

rises

200
the gas that makes up about 21% of the atmosphere
oxygen
200
where the ozone layer is found
stratosphere
200

This front is represented by blue triangles on a weather map.

What is a cold front?

200

This front forms when a cold air mass slides under a warm air mass and lifts it up to forms clouds.

What is a cold front?

200

Air in a high pressure system is ___.

Air in a low pressure system is ____.

dry

humid

300

1. a breeze that goes from land to sea

2. a breeze that goes from sea to land

1. sea breeze

2. land breeze

300
the "hot layer" of the atmosphere
thermosphere
300

This front forms when warm air slides over cold air.

What is a warm front

300

This front forms when a cold air mass meets a cool air mass with a warm air mass in the middle. The warm air mass gets cut off from the ground and is forced upward to create clouds.

What is occluded front?

300

Air flows ___ __ high pressure, and then to low pressure.

out of

400
gas in the atmosphere that varies from place to place
oxygen
400
the layer of electrically charged particles
ionosphere
400

This front is represented by purple triangles and circles all going the same direction.

What is an occluded front?

400

This air mass is represented by red circles and blue triangles. The circles and triangles are facing opposite directions.

What is a stationary front?

400

High pressure air systems bring _____ skies

clear

500

when do sea breezes happen, and when do land breezes happen

sea breezes at night, land breezes at day

500
the thickest layer of the atmosphere
thermosphere
500

This front is when a cold air mass meets a warm air mass and neither one move.

What is a stationary front?

500

All fronts bring this.

What is precipitation?

500

The air flows _______ _________ in a low pressure system.

The air flows _________ in a high pressure system

counter clockwise

clockwise