Atmosphere
In the Clouds
Meteorology
Measurement Tools
Water
100

The layer of Earth's atmosphere that contains the ozone layer

What is the stratosphere?

100

Clouds form when moist winds encounter mountains

What is orographic lifting?

100

The current state of the atmosphere

What is weather?

100

An instrument that measures air pressure

What is a barometer?

100

The amount of water vapor present in air

What is humidity?

200

The atmospheric layer that is closest to Earth's surface

What is the troposphere?

200

Cloud droplets collide to form larger droplets 

What is coalescence?

200

Long-term variations in weather conditions over a particular area

What is climate?

200

A balloon-borne package of sensors that gathers upper-level temperature, air pressure, and humidity

What is a radiosonde?

200

Occurs when the amount of water vapor in a volume of air has reached the maximum amount

What is saturation?

300
The atmospheric layer whose density causes the temperature to rise with height

What is the thermosphere?

300

The type of cloud is puffy and lumpy looking?

What is Cumulus?

300

An increase in temperature with height

What is a temperature inversion?

300

A record of weather data for a particular site at a particular time

What is a station model?

300

What is the temperature to which air must be cooled at constant pressure to reach saturation?

What is Dew Point?

400

The outermost layer of Earth's atmosphere

What is the exosphere?
400

The type of cloud that is layered and sheet like

What is Stratus?

400

Large volume of air that takes on the characteristics of the area over which it forms?

What is an air mass?
400

Created by applying physical principles in mathematics to atmospheric variables and then making a prediction about the variables change over time

What is a digital forecast?

400
The amount of water vapor in a volume of air relative to the amount of water vapor needed to reach saturation

What is relative humidity?

500

The atmospheric layer above the stratosphere where the temperature decreases with height?

What is the mesosphere?

500

The type of cloud is wispy and indistinct?

What is Cirrus?

500

Describes the narrow region separating two air masses of different densities.

What is a front?

500

A forecast that is based on comparisons to past weather patterns

What is an analog forecast?

500

Particles of atmospheric dust around which cloud droplets form

What is condensation nuclei?