The Atmosphere
Air Masses
Weather Fronts
Misc.
Vocabulary
100
Which layer of the atmosphere would you find Cumulonimbus clouds, which can extend up to 20 km?
The Stratosphere
100
Air masses that are cold because they form over the Arctics are called what?
Polar Air Masses
100
What does a cold front look like on a weather map?
A line with blue triangles.
100
Which of the following would be the least helpful to take with you in a weather balloon? barometer, rain gauge, anemometer, or thermometer
rain gauge
100
The layers of air that surround Earth.
What is the Atmosphere?
200
Name the layers of the atmosphere from the layer closest to Earth to farthest from Earth.
Troposphere, stratosphere, mesosphere, thermosphere, exosphere
200
What are air masses called that form over land?
Continental Air Masses
200
What is the boundary between two air masses called when a warm air mass moves into an area of cooler air?
A warm front
200
True/False. The amount of water vapor in the air varies because air at different temperatures holds different amounts of water.
True
200
A large, rotating tropical storm system with wind speeds of at least 119 km per hour.
What is a hurricane?
300
Which layer of the atmosphere is the warmest?
The Thermosphere
300
Air masses affect the ______________of an area?
weather
300
A warm front brings what type of weather?
steady rain
300
If warm front is passing through an area, what type of clouds would be in the sky?
Nimbostratus
300
The weight of air pressing down on a unit of area.
What is air pressure?
400
Which layer makes up about 75% of the total mass of the atmosphere?
Troposphere
400
What is the unique weather event that takes place every 3 to 7 years due to unusual warming of surface water?
El Nino
400
A cold front moving rapidly into a warm front brings what type of weather?
thunderstorms
400
What is the main causes of differences in weather around the world?
The unequal heating of the Earth by the Sun
400
The average of all weather conditions in an area over a period of time.
What is climate?
500
What is the most common gas in the atmosphere?
nitrogen
500
An air mass formed over the northernmost part of the Pacific Ocean would be called what?
A maritime Polar air mass.
500
If you were looking at a weather map, how would you know which way a front was moving?
Whichever way the half circles or triangles are pointing. (but stationary fronts don't move!)
500
Why do areas around the equator tend to be warmer than areas near the poles?
The sun's energy is concentrated on a smaller area at the equator.
500
The ratio of the actual amount of water vapor in the air to the total amount of water vapor the air could contain at that temperature.
What is relative humidity?
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