Air

Why do humans need air?

• Breathe

• Walk

What is wind?

• Still air

• Moving air

Do plants and animals need air?

• Yes

• No

Campfire can burn without air.

• True

• False

Divers need ______ under the water.

• Water tanks

• Air tanks

The ________ needs to be filled with air to work.

• Tire

• Car

Factories and cars ______ the air.

• clean

• pollute

Breathing polluted air can make us ____.

• sick

• healthy

What makes the air dirty?

• Smoke and dust

• Plant and trees

Planting more trees can reduce the ________.

• Pollution

• Air