AIR AND IN THE GROUND

what are properties of air?

• It fills space

• it has no weight

• it has colour

• there is no air on earth

We need air for

• breathing

• burning

• drying clothes

• all of the above

Impure air is bad for

• health

• house

• pond

• bed

What comes out when we burn anything.

• smoke

• germs

• water vapour

• air

polluted air contains

• germs

• smoke

• dust

• all of these

What is wind?

• Moving air

• stopped air

Air has no weight.

• True

• False

Air is needed for breathing.

• True

• False

Which property of Air is observed when air is filled in tyres?

• Air is needed for burning

• Air occupies space

Windmills are used to produce

• rain

• electricity