Weather Fronts

Front

In a high pressure systems, there are few clouds because the air is moving downward.

Back

there are few clouds because the air is moving downward

Front

What is a front? Options: where warm air is cooling at earth's surface, a line where hot and cold air are separating, a line where two different air masses meet, where cold air is rising and forming rain clouds

Back

a line where two different air masses meet

Front

When a cold front is approaching, what happens?

Back

warm air rises, cools, and causes rain and thunderstorms

Front

The symbol on a weather map for a cold front is what?

Back

a line with triangles on it

Front

If an air mass is rising, it must be

Back

warm and less dense

Front

If an air mass is sinking, it must be

Back

cold and more dense

Front

When two air masses meet, what happens?

Back

The weather changes and precipitation usually occurs.

Front

Air masses are different in many ways. Which of these is NOT different? moisture contents, atmospheric pressure, temperature

Back

ratio of oxygen/nitrogen

Front

When a cold front or a warm front stays in place for several days without invading another front, it is called a ______.

Back

stationary front

Front

This is the symbol for which type of front?

Back

warm front