Definitions
Name that layer
Up Up and Away
Gases
Other
100
This is the condition of Earth's atmosphere at a particular time and place.

What is weather?

100

The layer of the atmosphere where the ozone is.

What is the stratosphere?

100

You would have to travel through this many layers of Earth's atmosphere before entering space.

What is five?

100

What gas takes up 78% of the atmosphere?

What is nitrogen?

100

This is the name of what protects us from ultraviolet radiation from the sun.

What is the ozone layer?

200

This is the envelope of gases that surround the planet.

What is atmosphere?

200

This is the outermost layer of Earth's atmosphere.

What is exosphere?

200

As you get closer to sea level, the density of the air pressure changes in this way.

What is it increases?

200

What gas takes up about 21% of the atmosphere?

What is oxygen?

200

Other than gases, these two things make up our atmosphere.

What is water vapor and dust particles?

300

This is the amount of mass in a given volume of air.

What is density?

300

This is the coldest layer of the atmosphere.

What is the mesosphere?

300

As you travel up through the troposphere, the temperature changes in this way.

What is decreases?

300

This gas is essential for plants to produce food. It makes up less than 1% of our atmosphere.

What is carbon dioxide?

300

This is the weather of an area over a long period of time.

What is climate?

400

This is the result of the weight of a column of air pushing on an area.

What is air pressure?

400

This is the layer of Earth's atmosphere where meteors burn up.

What is mesosphere?

400

When you go up through the atmosphere, the density of the air changes in this way.

What is it decreases?

400

The gases that plants and animals need to survive are kept close to earth because of this.

What is the atmosphere?

400

Weather occurs in this layer of Earth's atmosphere.

What is the troposphere?

500

This is the distance, or elevation, above sea level.

What is altitude?

500

This is the layer of the atmosphere that we live in.

What is the troposphere?

500

As you travel up through the stratosphere, the temperature changes in this way.

What is increases?

500

This is water in the form of a gas.

What is water vapor?

500

This is the hottest layer of Earth's atmosphere.

What is the thermosphere?