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PrecipitationAir Masses

Clouds InstrumentsMiscellaneous

Water in the air condenses when the air is cooled to the point of

this

What is saturation?

What water vapor in the air eventually falls

to the Earth as

What is precipitation?

What cloud droplets that fall in

temperatures above freezing fall as

What is rain?

What forms instead of rain when the air

temperature is below freezing

What is snow?

Snowflakes that melt as they fall then

refreeze form this

What is sleet?

The properties of this are determined by the

part of the Earth’s surface over which it

forms

What is an air mass?

The slope of a warm air mass

What is gentle?

The kind of front that forms when a warm air mass is forced up over a cold air mass

What is warm?

The kind of air mass that develops over Northern Canada

What is cold and dry?

The kind of front that forms when two cold air masses merge and

the warm air mass between them is forced

to rise

What is occluded?

A large and billowy cloud

What is cumulus?

When water does this in the atmosphere, it

forms clouds

What is condenses?

When air near the ground is cooled to the saturation point, this

forms

What is fog?

Water that condenses around dust particles

in the atmosphere forms these

What are cloud droplets?

The type of clouds that form near the ground

What is stratus?

An instrument used to measure temperature

What is a thermometer?

Sensitive instruments used to measure

atmospheric pressure

What are barometers?

The measure of the amount of water at a

particular temperature

What is the relative humidity?

An instrument which measures relative

humidity

What is a psychrometer?

The kind of weather that high pressure

usually brings

What is clear?

The amount of water vapor in the air

What is humidity?

How a great deal of water gets into the

atmosphere

What is evaporates?

The temperature at which air is saturated

and condensation takes place

What is dew point?

The boundary between air masses

What is a front?

The kind of front that forms when a cold air

mass moves underneath a warm air

mass

What is cold?