Properties of air

Front

We need ____ in the atmosphere to breathe.

Back

air

Front

Riya drinks lemonade with a straw. The lemonade moves up to the straw due to ____________?

Back

air pressure

Front

Air occupies space. True or False?

Back

True

Front

Does air have mass?

Back

Yes

Front

Air does not have mass or weight. True or False?

Back

False

Front

What is air?

Back

A mixture of gases that we breathe.

Front

What is air pressure?

Back

The force exerted by the weight of air.

Front

Can we see air?

Back

No, but we can see its effects.

Front

What happens to air when it is heated?

Back

It expands and becomes lighter.

Front

What is the main gas in the air we breathe?

Back

Nitrogen.