p3 - Air around us

What is the air made of?

• Oxygen

• Nitrogen

• Carbon dioxide

• Others

• Cats

What percentage of the air is oxygen

• 0.04%

• 0.96%

• 78%

• 21%

• 0.96%

What percentage of the air is carbon dioxide?

• 0.04%

• 0.96%

• 78%

• 21%

What percentage of the air is Nitrogen?

• 0.04%

• 0.96%

• 78%

• 21%

• 0.96%

What percentage of the air is Others?

• 0.04%

• 0.96%

• 78%

• 21%

• 0.96%

Why is oxygen important?

• All living things breathe oxygen for their living

• Dilutes the oxygen in the air, making it good for living things

• Plants use it to make food

Why is carbon dioxide important?

• All living things breathe oxygen for their living

• Dilutes the oxygen in the air, making it good for living things

• Plants use it to make food

Why is nitrogen important?

• All living things breathe oxygen for their living

• Dilutes the oxygen in the air, making it good for living things

• Plants use it to make food

Air pollution is...

• When there is too much oxygen in the air

• When there are things in the air that are good/we do want to be there

• When there are things in the air that are bad/we do not want to be there

Which causes air pollution?

• Volcanic eruptions

• Plants

• Mice