Composition Of Air

Air consist of different gases like

• Oxygen

• Carbon dioxide

• Nitrogen

• Hydrogen

• Inert gases

Other substances that contain inside air

• Dust

• Microorganism

• Water vapour

• Ashes

• Rust

The largest amount of gas in the air

• Nitrogen

• Oxygen

• Hydrogen

• Carbon dioxide

Examples of inert gases

• Helium

• Nitrogen

• Neon

• Argon

• Krypton

Importances of oxygen gas

• Respiration

• Cooling agent

• Combustion

• Photosynthesis

Tags

NGSS.MS-LS1-6

How many percent of oxygen in the air

• 20%

• 21%

• 78%

• 50%

The largest amount of gas in the air

• Nitrogen

• Oxygen

• Hydrogen

• Carbon dioxide

This type of gas use in advertising light

• Helium

• Neon

• Krypton

• Argon

This material use to prove that water vapour exist in the air

• Litmus paper

• Methyl orange

• Cobalt chloride paper

• Culture gel

Gas that use in decorative balloon

• Oxygen

• Nitrogen

• Helium

• Xenon

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-1