SC 4 Earth's Atmosphere

Earth's Atmosphere

By Kirstin Mccoon

Earth’s atmosphere is the layer of gases that surrounds the planet and makes conditions on Earth suitable for living things. 

​What is the atmosphere?

Multiple Choice

What is the atmosphere?

• A layer of water in the air.

• A layer of gases that surrounds the earth.

• The part of the air where weather happens.

• It's what you breathe in.

Nitrogen makes up more than 3/4 of what we consider to be “air’ and oxygen makes up most of the rest, but a small amount of carbon dioxide, water vapor, and other gases are also found in the atmosphere. 

​Gases of the atmosphere?

Multiple Choice

How much of the atmosphere is Nitrogen?

• More than 3/4

  (78 percent)

• About half

  (50 percent)

• Less then 1/3

  (33 percent)

• About 1/4

  (25 percent)

Multiple Choice

Which gas makes up most of the atmosphere?

• oxygen

• carbon dioxide

• nitrogen

• water vapor

There are 5 layers in the atmosphere. The layer closest to the earth (troposphere) is where weather takes place. Water vapor (water in the form of a gas) is located in this layer.

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​Layers of the atmosphere.

Multiple Choice

How many layers does the atmosphere have?

• 2

• 3

• 4

• 5

Multiple Choice

In what layer of the atmosphere does weather happen?

• troposphere

• stratosphere

• mesosphere

• exosphere