Page 68 - Carvaan Science-2

Wind carries the seeds of Wind helps a hot air Air is used to play
plants to far off places. Later balloon to rise and fly. instruments like flutes,
these seeds grow into new plants. mouth organ, etc.

Wind as an Enemy : The strong and fast
wind are called storm. Storms can cause
damage to houses, crops, trees and animals.

Storms at sea can overturn the boats. It may
also cause the ships and boats to sink.

! Air is present everywhere.
! All living things need air for breathing.

! We cannot see the air, but we feel it when it blows.

! Air contains water vapour, dust, smoke and gases.
! Impure air is called polluted air.

! Fresh air makes us healthy.
! Moving air is called wind.

Check Yourself

A. Tick ( ) the correct option : Critical Thinking

1. We feel air when it _________________ .
(a) freezes (b) flows (c) blows

68 Science-2