Air Masses and Fronts

Huge clumps of air that more around the Earth, bringing changes in weather?

• air masses
• fronts 
• storms

Air masses are like the surface they form over.  The air mass shown above formed over land in northern Canada.  This air mass is?

• warm and moist
• cold and moist
• cold and dry
• warm and dry

The pink air mass formed over the ocean near the equator.  The air mass will be?

• warm and moist
• cold and moist
• cold and dry
• warm and dry

A tropical air mass brings ? air.

• warm
• cold

A polar air mass brings ? air.

• warm
• cold

When two air masses meet, they form a ?

• front
• bigger mass
• smaller mass

When cold air catches up to warm air and pushes it up and away, a ? is formed.

• cold front
• warm front

The map symbol for a cold front is a curved line with small ?

• ovals
• circles
• spikes

When a warm air mass catches up to a cool air mass, a ? is formed.

• cold front
• warm front

The map symbol for a warm front is a curved line with ?

• rounded knobs
• spikes