Air Masses
Fronts
Lines on a Map
Weather Maps
Random
100

The two characteristics of air masses.

What are temperature and humidity?

100
Form when two different large air masses meet and usually bring changes in the weather.
What are fronts?
100
Marked on weather maps as a blue line with triangles on it.
What is a cold front?
100
The capital letter H stands for this on a weather map.
What is a high pressure center?
100

The average weather conditions of a region for a season or year.

What is a climate?

200
An air mass that is dry and forms over land.
What is a continental air mass?
200
A type of front made of cold, dense air. Rain, snow, thurnderstorms and sometimes tornadoes are caused by this front. Usually, the precipitation does not last very long.
What is a cold front?
200
Marked on a weather map as a red line with half circles on it.
What is a warm front?
200
A capital letter L stands for this on a weather map.
What is a low pressure center?
200

Conditions of the air outside such as temperature, cloud cover, wind speed, precipitation, and humidity.

What is weather? 

300
An air mass that forms over the polar regions and is cold.
What is a polar air mass?
300
The front that forms when two air masses meet and neither one takes over. Often causes many cloudy days to occur in a row.
What is a stationary front?
300
Marked on a weather map as a blue line with blue triangles on one side and red half circles on the other side.
What is a stationary front?
300

The triangles on a cold front are facing North, the front is traveling _______. 

What is North?

300

The cooling off of the water in the atmosphere changing gas to a liquid.

What condensation? 

400

An air mass that forms over the tropics or near the equator and is warm.

What is a tropical air mass?

400
The type of front formed when a large mass of warm air takes over the cooler air mass. Usually produce rain, fog, or snow that lis light but steady.
What is a warm front?
400
Lines that connect areas with the same air pressure on a map.
What are isobars?
400

Weather in the United States moves from this direction. 

What is west to east?

400

Water droplets fall from the atmosphere in the form of rain, hail, sleet, or snow.

What is precipitation?

500
An air mass that is wet and forms over water.
What is a maritime air mass?
500
The type of front that develops when two cool air masses merge, forcing the warm air to rise and become trapped. Usually brings wind and preciptiation.
What is an occluded front?
500
Marked on the weather map as a purple line with half circles and triangles on the same side.
What is an occluded front?
500

This weather instrument measures air pressure. 

What are barometers?

500

The amount of water vapor in the air.

What is humidity?

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