Composition of the Atmosphere

What are the two major atmospheric gases?

• Nitrogen and oxygen

• Argon and carbon dioxide

• Water vapor and ozone

• Methane and carbon dioxide

What are the important minor gases?

• Nitrogen and oxygen

• Argon and carbon dioxide

• Water vapor and ozone

• Methane and carbon dioxide

What are particulates? Why are they important?

• Tiny particles in the air; important for the formation of rain and snow

• Gases in the air; important for trapping heat in the atmosphere

• Layers of the atmosphere; important for regulating temperature

• Solid matter in the air; important for breathing

What is humidity? How much humidity is in the air on a tremendously hot and humid day?

• The amount of water vapor in the air; high humidity on a hot and humid day

• The amount of oxygen in the air; low humidity on a hot and humid day

• The amount of carbon dioxide in the air; high humidity on a hot and humid day

• The amount of nitrogen in the air; low humidity on a hot and humid day

Tags

NGSS.MS-ESS2-6

NGSS.MS-ESS2-4

What does the atmosphere contain?

• Only gases

• Only water vapor

• Gases, water vapor, and particulates

• Only particulates

How much nitrogen does the atmosphere contain?

• 79%

• 1%

• 4%

• 20%

How much oxygen does the atmosphere contain?

• 20%

• 1%

• 4%

• 50%

What does the atmosphere do?

• Protect us from harmful radiation

• Regulate temperature on Earth

• Form rain and snow

• Allow us to hear sound

Tags

NGSS.MS-ESS2-6

NGSS.MS-ESS2-4

How many layers does the atmosphere have?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-ESS2-6

List the layers of the atmosphere starting from the lowest...

• Troposphere, Stratosphere, Mesosphere, Thermosphere

• Atmosphere, Stratosphere, Ionosphere, Exosphere

• Mesosphere, Exosphere; temperature and pressure

• Stratosphere, Mesosphere, Thermosphere and composition