Weather and Atmospheric Concepts

Front

Temperature

Back

A measure of the average energy of motion of the particles of a substance.

Front

Air Pressure

Back

The pressure caused by the weight of a column of air pushing down on an area.

Front

Altitude

Back

Elevation above sea level

Front

Water vapor

Back

Water in the form of a gas

Front

Dew point

Back

The temperature at which condensation begins

Front

Relative Humidity

Back

The amount of water vapor in the air at any given time is usually less than that required to saturate the air. Expressed as a percentage.

Front

Weather station model

Back

A group of symbols used to communicate weather at a given place on Earth's surface; Data includes temperature current precipitation, pressure and pressure change, dew point, etc.

Front

Precipitation

Back

Any form of water that falls from clouds and reaches Earth's surface.

Front

Cloud condensation Nuclei

Back

Small airborne particles upon which water vapor condenses to form clouds

Front

Barometer

Back

An instrument that measures atmospheric pressure