PTS GRADE 2

The example of Using air to breathe is ...

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• 
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The sailor use the air to...

• Keep fire burning

• Breathe

• Move the sailboat

The things that can pollute the air are ...

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• 
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"TRUE OR FALSE"

Air is invisible, it is colourless and odourless.

• True

• False

"TRUE or FALSE"

Athmosphere is made up of a blanket of gases.

• True

• False

There are some kinds of air, three of them are oxygen, carbon dioxide, and nitrogen.

The essential air for most living thing is . . .

• nitrogen

• oxygen

• carbon dioxide

Air has different uses. What the different uses of air if we see from the picture?

• We need air to breathe

• Some things need wind to move

• Some things need to filled with air to work

• We need air to burn things

The picture is example and illustration of . . .

• We need air to breathe

• Some things need wind to move

• Some things need to be filled with air to work

• We need air to burn

The air that dirty and harmful is called . . .

• smoke

• pollution

• dust

When particles mix with air as a result of burning we called ...

• smoke

• wind

• white air