a thin blanket of gas surrounding the earth
What is the atmosphere?
Weather occurs here
What is the troposphere?
moving air
What is wind?
cool air pushes itself under a warm air mass
What is a cold front?
solid or liquid water that falls from the sky
What is precipitation?
a mixture of nitrogen, oxygen, carbon dioxide, and other gases
What is air?
contains the ozone layer
What is the stratosphere?
a large body of air that has the same temperature and moisture
What is an air mass?
A warm air mass moves over a slower cool air mass
What is a warm front?
rain freezes as it falls from the sky
What is sleet?
the weight of air
What is air pressure?
meteors burn up in this layer
What is the mesophere?
boundary between two air masses
What is a front?
Air masses push against each other
What is a stationary air mass?
clouds that are flat and the lowest in the sky
What are stratus clouds?
The condition of the atmosphere at any moment
What is weather?
contains weather and communication sattelites
What is the thermosphere?
blow from the east toward the equator
What are prevailing easterlies or trade winds?
during the day the air over land is warm and sea air blows inland
What is a sea breeze?
large fluffy looking clouds with flat bottoms
What are cumulus clouds?
What is altitude?
gradually fades into space
What is the exosphere?
blow from the east and move away from each pole
What are polar easterlies?
measures the wind speed
What is an anemometer?
thin, curly clouds high in the sky
What are cirrus clouds?