Download CE Vocabulary 5

CE Vocabulary 5
Weather Front
A boundary that forms when air masses meet that have different
temperature, pressure, and humidity conditions.
Sea breeze
The flow of air from water to land.
Land breeze
The flow of air from land to water.
Jet stream
A long, narrow current of very strong winds in the upper troposphere.
Convection
The process by which heat moves through air or water.
Convection
current
A circulating flow of air or water resulting from temperature
differences; also called a convection cell.
Trade winds
Global winds that flow toward the equator, turning west as they go.
Westerlies
Global winds that flow from the west to the east.
CE Vocabulary 5
Global winds
Giant convection currents that circulate within the Northern and
Southern Hemispheres of the earth.
Cold front
The leading edge of a cold air mass. It occurs when a cold air mass
pushes a warm air mass ahead of it.
Stationary front
A boundary that occurs when two air masses move close to one
another, but neither has enough force to move the other; they both
remain fixed in place.
Occluded front
A boundary that occurs when both a cold and a cool air mass collide
with a warm air mass, which becomes trapped and lifted between
them.
Atmosphere
The thin blanket of gases that surrounds the earth.
Troposphere
The layer of the atmosphere closest to the earth, in which air moves in
all directions. It is where most of the earth’s weather takes place.
Ozone layer
A part of the stratosphere that contains a special form of oxygen (O₃)
that traps the sun’s harmful ultraviolet radiation and keeps it from
reaching the troposphere.