Show:
Air Moves
Air Masses
Severe Weather
Weather Forecasts
100
There are how many layers of Earth's atmosphere?
Five layers
100
A boundary between two air masses is called.
Front
100
This warning means that severe thunderstorms with high winds and hail might form.
severe storm watch
100
This weather measuring tool measures the amount of air pressure.
barometer
200
Regional winds generally blow which direction across the United States?
West to East
200
When a cold front comes in what normally happens?
Heavy precipitation falls
200
Upward winds lift one end of this spinning column while downward winds push down on the other end. This forms a
Tornado
200
Name one of the seven parts of our weather system.
temperature, moisture, clouds, precipitation, wind speed, air pressure, and wind direction
300
Air is made up of nitrogen and oxygen. What fraction of air is nitrogen?
8/10
300
Large body of air with similar properties all through it is called.
Air Mass
300
What dod hurricanes get their energy from?
Warm ocean water
300
The H on a weather map stands for.
Areas of high air pressure
400
When gases or liquids rise and sink in a circular pattern it is called
Convection current
400
Does a warm front mean the air is moving into the area or leaving?
Moving into
400
What is the first stage of a thunderstorm?
Strong quickly rising currents of moist air
400
What does an anemometer measure?
wind speed
500
As you go up through the atmosphere what happens?
Air pressure decreases
500
Name one of the four kinds of air masses.
Continental Polar, Maritime Polar, Continental Tropical, or Maritime Tropical
500
Which weather alert is the following. A severe thunderstorm has formed and you should prepare for this storm.
A severe storm warning
500
What is a stationary front?
A front that stays in one area for some time.