air moving from areas of higher pressure to areas of lower pressure
What is wind?
100
a boundary between two air masses of different density, moisture, or temperature
What is a front?
100
this type of precipitation will occur when the temperatures from cloud to ground are below freezing
What is snow?
100
how the Sun's energy reaches Earth
What is radiation?
100
strong hurricanes affecting North America usually begin as a low-pressure system off of what continent
What is Africa?
200
a measure of the average amount of motion of molecules
What is temperature?
200
this type of front involves three air masses of different temperatures--colder air, cool air, and warm air.
What is an occluded front?
200
this type of precipitation will occur when temperatures from cloud to ground are above freezing
What is rain?
200
the transfer of heat when two particles touch
What is conduction?
200
measures wind speed
What is an anemometer?
300
the measure of the amount of water vapor present in the air compared to the amount needed for saturation at a specific temperature
What is relative humidity?
300
this type of front occurs when a boundary between air masses stops moving
What is a stationary front?
300
this type of precipitation occurs inside cumulonimbus clouds when large updrafts continue to bring a nuclei of ice up to refreeze several times, forming layers
What is hail?
300
the transfer of heat through fluids
What is convection?
300
the process in which water pools in larger bodies (like oceans, seas, and lakes)
What is accumulation?
400
the temperature at which air is saturated and condensation forms
What is dew point?
400
this front occurs when colder air moves toward warm air
What is a cold front?
400
This type of precipitation occurs when snow goes through a layer of warm air, but will refreeze before hitting the ground.
What is sleet?
400
causes most of our weather in the troposphere
What is convection (convectional currents)?
400
measures air pressure
What is a barometer?
500
a large body of air that has properties similar to the part of Earth's surface over which it develops
What is air mass?
500
this front occurs when warmer, lighter air moves over heavier, colder air
What is a warm front?
500
This type of precipitation occurs when snow goes through a layer of warm air, but will refreeze once it hits the surface.
What is freezing rain?
500
hot air rises, cold air sinks is an example of what type of heat transfer