The natural process where water is recycled throughout the planet.
What is the water cycle?
The boundary where two air masses meet and produce weather.
What is a front?
The layer of the atmosphere that we live in.
What is the troposphere?
Characterized by heavy winds, rain, and lightning.
What is a thunderstorm?
Created when water vapor condenses in the upper atmosphere.
What is a cloud?
When liquid water is converted to vapor.
On a weather map, represented by a large red L.
What is a low pressure system?
The spectacular Aurora Borealis (Northern Lights) occurs in this layer.
What is the thermosphere?
This type of storm is a frequent occurrence in the Midwestern United States in early spring.
What is a tornado?
These clouds are high up and composed primarily of ice.
What is a cirrus cloud?
When water falls back to the surface of the Earth in various forms.
What is precipitation?
Represented by alternating red semicircles and blue triangles.
What is a stationary front?
Meteors burn up in this layer.
What is the mesosphere?
Large, cyclonic tropical storms that occur over warm ocean waters.
What is a hurricane?
The classic puffy cloud that signifies neutral weather.
What is a cumulus cloud?
The method of transferring heat through the movement of a fluid, such as water or air.
What is convection?
Occurs when a cold air mass replaces a warm air mass.
What is a cold front?
The layer that is closest to outer space.
What is the exosphere?
Large rotating area of high pressure, and brings fair weather.
What is an anticyclone?
These clouds are associated with warm fronts and often bring rain.
What is a stratus cloud?
When water vapor releases heat and converts back to a liquid.
Sometimes preceded by fog, this front typically has lower pressure than a cold front and brings rain.
What is a warm front?
The layer where temperature increases, and where certain military jets fly.
What is the stratosphere?
These are the hearts of all storms, and are created by the rising and falling of air.
What is a convection cell?
These types of clouds occur in the stratosphere over high latitudes, and signify ozone destruction.
What is a polar stratospheric cloud?