Layers of the Atmosphere
Air Masses
Weather Fronts
Clouds
Mixed
100

What is the lowest layer of the atmosphere

Troposphere

100

What type of air mass forms over land?

Continental

100

This front moves in quickly and can bring rain or snow followed by clear skies

Cold front

100

What is the name for clouds that form near the ground?

Fog

100

What type of air forms over oceans?

Maritime

200

What layer is considered the middle layer? Hint it's name means middle.

Mesosphere

200

How would we describe the temperature of polar air?

Cold air

200

This front move in slowly and can bring rain and warmer temperatures

Warm front

200

These clouds look like cotton and their name means "heap" or pile in Latin

Cumulus clouds

200

Tropical air is...

warm air

300

What are the four layers in order from low to high?

Troposphere, Stratosphere, Mesosphere, Thermosphere

300

A maritime tropical air mass has what two qualities?

Warm and humid

300

This front does not move much and brings rain for several days

Stationary front

300

These clouds form in flat layers and usually cover all or most of the sky.

Stratus clouds

300

What layer of the atmosphere contains our weather?

Troposphere

400

What layer of the atmosphere contains the ozone layer?

Stratosphere

400

A continental polar air mass has what type of qualities?

Cold and dry

400

This front occurs when two cold fronts block a warm air mass from reaching the ground

Occluded front

400

These feathery looking, high in the sky clouds are usually made of ice crystals?

Cirrus clouds

400

These are huge, towering clouds that often produce thunderstorms.

Cumulonimbus clouds

500
The Thermosphere can be divided into two parts, the exosphere and this...

Ionosphere

500

What type of air mass largely influences Tualatin's weather?

Maritime Polar

500

What is the boundary between two or more air masses

Front

500

What are the two conditions needed for clouds to form?

Cooling air and dust particles

500

What are the four different air masses?

Maritime polar

Maritime tropical

Continental polar

Continental tropical

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