Gases in Earth's Air

What is the correct order of gases, from LARGEST to smallest amount?

• Oxygen, Nitrogen, other gases

• Nitrogen, Oxygen, Other gases

• Other gases, Oxygen, Nitrogen

How much Oxygen is in our air?

• 78%
• 21%
• 1%
• 100%

How much Nitrogen is in our air?

• 78%
• 21%
• 1%
• 100%

What is the main gas in the Other Gases?

• Argon
• water vapor
• helium

What is the thin layer of gases called that surrounds Earth?

• hydrosphere
• lithosphere
• atmosphere

What is the acronym to remember the order of gases in our air, from LARGEST to smallest?

• Y E S !
• N O !
• Earl Tried Setting Mama's Thermostat

In a pie graph showing gases in our air, what gas makes up OVER 3/4 of the graph?

• Nitrogen
• Oxygen
• Other gases

What gas is 78% of our air?

• Oxygen
• Other gases
• Nitrogen

What gas is 21% in our air?

• Other gases
• Oxygen
• Nitrogen