a blanket of air
the layer closest to the earth
the weight of air pressing down to earth
a wind that results from a local difference in temperature
global winds that always blow from the same direction
water that continuously moves from earth's surface to the atmosphere and back to earth
during a part of the water cycle liquid water changes to gas
when water changes from a gas to a liquid
the amount of water vapor in the air
water that falls from the atmosphere to earth's surface
a large body of air that has the same temperature and humidity throughout
border where two air masses meet
the pattern of weather an area experiences over a long period of time
Please allow access to your computer’s microphone to use Voice Recording.
We can’t access your microphone!
Click the icon above to update your browser permissions above and try again
Reload the page to try again!
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Your microphone is muted
For help fixing this issue, see this FAQ.