7th Grade Ch 13, Lesson 2 Test

Continental polar air masses are _________ and __________.

• Warm and Wet
• Cold and Dry
• Warm and Dry
• Cold and Wet

High-pressure air at the center ________ and moves toward

• Rises
• Sinks
• Stays the same
• Evaporates

In a low-pressure system, air moves from _________ to low pressure.

• warm
• high
• low
• cold

A violent, whirling column of air that contacts the ground is a ______________.

• Hurricane
• Thunderstorm
• Tornado
• Blizzard

The ______________ stage of a thunderstorm starts with cloud formation and updrafts.

• First
• Cumulus
• Mature
• Last

In a low pressure system, Air in the center of the system __________, and the water vapor in it condenses and forms clouds.

• Rises
• Sinks
• Stays the Same
• evaporates

A ______________________ system is a large body of circulating air that has high pressure at its center and lower pressure on the outside.

• warm pressure
• low pressure
• high pressure
• cold pressure

A weather __________ is the boundary between two air masses.

• Report
• Forecast
• Front
• Mass

As the warm air rises, water vapor condenses, and ______________ often occurs.

• Sunshine
• Clouds
• Wind
• Precipitation

___________ air masses ae very cold and dry. they form over ____________ or arctic ice.

• Arctic and Maritime
• Arctie and Continents
• Arctic and Water
• Arctic and Land