Fronts, Air Masses, Global Winds, Weather

What is an air mass?

• a place where weather always changes in an extreme way
• a large body of air with the same temperature and moisture
• any cloud that produces rain, sleet, snow or hail
• any kind of air, as long as it is always wet and freezing

What forms when two air masses meet and create weather?

• a formation
• warm air
• a front
• a tornado

When a cold air mass crashes into a warm air mass, which kind of front is formed?

• cold front
• warm front
• hot front
• polar front

Why does a warm front usually bring a light and steady rain?

• warm fronts bring extremely low pressure
• weather that is not intense always happens at any kind of front
• a warm air mass violently crashes against a cold air mass, so the weather is wet
• a warm air mass slowly climbs up over the cold air mass, so the weather is less intense

Which kind of front usually forms long, thin stratus clouds?

• polar front
• cold front
• warm front
• hot front

Which front leads to steady rain for several days?

• warm front
• cold front
• stationary front
• occluded front

Name this symbol

• warm front
• cold front
• stationary front
• occluded front

What does this symbol on a weather map indicate? 

• High pressure system
• Low pressure system
• Cold front
• Warm front

What does this symbol indicate on a weather map? 

• High pressure system
• Low pressure system
• Cold front
• Warm front

This type of front can bring strong storms.

• cold
• warm
• stationary
• occluded