Earth's Atmosphere
Weather
Precipitation
Clouds
Vocabulary
100

This force pulls the gasesin the atmosphere toward Earth

What is gravity?

100

When a cool, dense air mass replaces a warm air mass.

What is a cold front?

100

The most common type of precipitation is

What is rain?

100

This plays a major role in the water cycle

What are clouds?

100

the layer of gases that surround Earth

What is atmosphere?

200

This is where humans and animals live, airplanes fly, and most weather happens.

What is the troposphere?

200

when a warm, less dense air mass replaces a cold air mass

What is a warm front?

200

The opposite of evaporation

What is precipitation?

200

uniform and flat, producing a gray layer of cloud cover

which may cause periods of light precipitation.

What are stratus clouds?

200

a large body of air that has the same temperature and humidity throughout

What is air mass?

300

This layer gets its heat from the ozone layer, an invisible layer of protective gases

that circle Earth absorbing radiation from the sun

What is the STRATOSPHERE?

300

when cool, dry air circulates clockwise, forcing air down.

What is a high pressure system?

300

precipitation in the form of small balls

or lumps of ice and snow formed in high storm clouds

What is hail?

300

puffy, white

clouds seen during fair weather

What are cumulus clouds?

300

the temperature at which water begins to condense

What is dew point?

400

It is much colder in this layer and keeps getting colder as you move up.

What is the mesosphere?

400

when warm, moist air circulates counter-clockwise, forcing air upward. 

What is a low pressure system?

400

precipitation that freezes or refreezes as it approaches the ground

What is sleet?

400

precipitation clouds.

What are nimbus clouds?

400

a type of physical change in which a substance changes from a gas to a liquid

What is condensation?

500

Thi layer is constantly hit with UV rays from the sun

What is the thermosphere?

500

when two fronts meet, but neither are strong enough to take over.

What is a stationary front?

500

Sleet and snow occur when the air near the

ground is at this temperature

What is 32 degrees F or below?

500

high-level clouds

What are cirrus clouds?

500

the lowest region of Earth’s atmosphere

What is the troposphere?

Click to zoom