Atmosphere
Water Cycle
Weather factors
Weather Tools
Clouds
100

Plants need this gas to make food. 

What is carbon dioxide?

100

Energy source that drives the water cycle.

What is solar energy?

100

Four types of precipitation. 

What is rain, hail, snow, and sleet?

100

Device that measure temperature, usually contains a liquid that expands and rises as it gets hot. 

What is a thermometer?

100

Process by which water vapor(a gas) turns to a liquid as a result of the cold atmosphere. 

What is condensation?

200

Animals need this to breath.

What is oxygen?

200

Process by which liquid water becomes a gas.

What is evaporation?

200
Pressure caused by the weight of a column of air pushing down on an area. 

What is air pressure?

200

Device that shows wind direction. 

What is a wind vane?

200

Wispy, feathery clouds made of ice crystals that form at high levels. Usually signal stormy weather approaching. 

What is cirrus?

300

Layer of oxygen found in the stratosphere that absorbs the suns radiation.

What is the ozone?

300

Process by which water vapor gathers together and becomes a cloud due to the cold atmosphere.

What is condensation?

300

A natural movement of any velocity. 

What is wind?

300

Device that measures air pressure. 

What is barometer?

300
Fluffy, white clouds with flat bottoms that look like rounded piles of cotton. 

What is cumulus?

400

Layer of the atmosphere where weather occurs. 

What is troposphere?

400

Any form of water that falls from a cloud. 

What is precipitation?

400

The amount of water vapor in the air. 

What is humidity?

400

Device that measures wind speed.

What is anemometer?

400

Clouds that form in flat layers, covering most of the sky. 

What is stratus?

500

Process by which 50% of suns radiation is abosrbed by the earth and water and 50% is absorbed by the ozone and clouds. 

What is Greenhouse Effect?

500

Mass of water changes as it turns from vapor to liquid. 

What is change in density?

500

When a warm air mass is caught between 2 cold air masses, resulting in snow. 

What is an occluded front?

500

Device that measures relative humidity.

What is sling psychrometer?

500

Fluffy, grey rain cloud. 

What is cumulonimbus?

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