Precipitation
Air Masses
Clouds
Instruments Miscellaneous
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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?