Introduction to Atmosphere and Gases

About how much of the atmosphere contains nitrogen?

• 1%
• 78%
• 21%
• 97%

In which layer of the atmosphere do we live and weather occurs?

• stratosphere
• thermosphere
• mesosphere
• troposphere

Tags

NGSS.MS-ESS2-5

Where is the ozone layer, which absorbs UV radiation, located in our atmosphere?

• stratosphere
• thermosphere
• mesosphere
• troposphere

Pressure is caused by ______.

• gravity.
• gas molecules colliding with each other.
• gas molecules colliding with surfaces of the container.
• gas molecules reacting with each other.

Gas particles have the ________ kinetic energy (compared to liquids and gases) because they move the fastest.

• least

• most

Tags

NGSS.HS-PS3-2

What happens to gas particles when they cool down?

• particles speed up and move closer
• particles slow down and move apart
• particles slow down and move closer
• particles speed up and move apart

Tags

NGSS.MS-PS1-4

Which container will have lower pressure?

• left
• right
• they both have the same pressure

This gas makes up 21% of the atmosphere

• ozone
• oxygen
• nitrogen
• water vapor

What is the hottest layer in the atmosphere?

• Ionosphere
• Stratosphere
• Thermosphere
• Mesosphere

The _____ protects us from the harmful UV rays of the sun.

• Troposphere
• Ozone Layer
• Exosphere
• Stratosphere