Terms in this set (35)
Is measured in degrees Celsius or Fahrenheit.
The weight of the air (atmosphere) pressing down on the Earth's surface.
How fast the wind is blowing.
The amount of water, which falls from the sky.
The direction in which the wind blows.
The amount of moisture (water vapor) in the air.
A person who uses weather instruments and data to predict weather patterns.
The boundary between two different air masses
A large body of air with the same temperature and humidity
The condition of the atmosphere at a certain place and time
The mixture of gases that surrounds Earth
The changing of water from a gas into a liquid
Water as a gas
Is formed when a cold air mass pushes into a warm air mass; may produce thunderstorms.
Is formed when a warm air mass pushes into a cold air mass; may produce light rain.
A weather instrument used to measure air pressure.
A weather instrument used to measure temperature.
A weather instrument used to measure wind speed.
A weather instrument used to measure precipitation.
A weather instrument used to measure wind direction.
A weather instrument used to see the movement of storm clouds.
Warm Air Mass:
a warm body of air that reflects the conditions of the region below it
Cold Air Mass:
a cold body of air that reflects the conditions of the region below it
Air molecules in motion
moisture condensed in the atmosphere that falls visibly in drops
smallest unit of water, consisting of two hydrogens and an oxygen
Angle of Sunlight:
the angle at which the sun hits the Earth
the process of a substance changing from its liquid to its gaseous state
High pressure system
Air is sinking in the center, preventing clouds, and leaving a clear and sunny day
Low pressure system
Air contains water vapor, rises in the center and usually leads to clouds and precipitation
Is how hot or cold the air is
An instrument used to measure the humidity in the air.
Forces that influence wind
Air Temperature, air pressure, centripetal acceleration and Earth's rotation
Is an instrument that measures weather conditions higher in the atmosphere.
Is able to photograph, track, and measure the conditions of large scale weather movements
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