Air Masses
Pressure Systems
Fronts
Vocabulary
100

A change in air pressure is a sign of a change in the ________.

What is Weather

100

A low pressure system brings what type of weather?

What is lousy, with any of the following: clouds, winds, precipitation.

100

The border between two air masses that collide is called a ______.

What is a front.

100

What is the weight of air pressing down on an area called?

What is air pressure.

200

mT stands for what air mass?

What is Maritime Tropical

200

A high pressure system brings what type of weather?

What is Happy Highs with weather that is clear and sunny. 

200

Which front is the only one that does not move?

What is a stationary front.

200

What is the movement of air from an area of high pressure to an area of low pressure called?

What is wind.

300

If an air mass is warm and dry, it is...

What is Continental Tropical

300

What is the name of a scientist who studies the changes in weather?

What is a meteorologist.

300

Name the 4 types of fronts.

What is warm front, cold front, stationary front, and occluded front.

300

What front occurs when two air masses come together and neither is strong enough to push the other out?

What is a stationary front.

400

What are three things that a single air mass has about the same of?

What is temperature, humidity (amount of moisture), and air pressure.

400

Air moves from areas of ____ ____ to areas of _____ _____.

What is high pressure to low pressure.

400

What does a stationary front look like?

What is blue triangle and red circles facing opposite directions. 

400

What front occurs when a warm air mass gets caught between two cold air masses?

What is an occluded front.

500

Name the 4 air masses that affect the U.S.

What is Maritime Tropical, Maritime Polar, Continental Polar, and Continental Tropical.
500

Air pressure is measured with a _______.

What is a barometer.

500

At a front, the ______air will always be pushed up over the _______ air

What is warmer.... cooler.

500

What is the definition for high pressure?

What is the atmospheric pressure is higher than the pressure in the surrounding areas resulting in clear skies and calm.