AIR AND WATER

BY CHANDNI ATHI

Air•Air Is A Natural Resource From The Environment•No One Can See Or Touch Air But It Is Always Around Us.•Humans, Animals And Plants Need Air To Breathe.•When Air Moves It Is Called As Wind. We Feel Air Only When It Moves

BREEZE : A GENTLE WIND

•Gentle Slow Moving Air Is Called As Breeze.•We Feel Very Pleasant With The Breezing Air.

GALE : STRONG WIND

•Wind Blowing Fast And Slightly Strong Is Called As Gale•It Can Move The Leaves And Branches Of Trees

STROM : VERY STRONG WIND Very Strong Wind With Rain Or Snow , Is Called As Storm

HURRICANE : VERY SEVERE STORM

EFFECTS OF STROM

Uprooted Trees

Flooded Land

Washed Away Farms

Destroyed Houses

USE OF WIND •Wind Helps To Move The Sail Boat .

•Wind Moves The Fan Of The Wind Mill

On windy day kids can fly kites.

Wet clothes dry fast in windy air.

PROPERTIES OF AIR

Invisible Occupies Space, Has Weight

WATER

WATER

•Water Is One Of The Natural Recourses.•Humans, Animals And Plants Need Water To Drink And Live.•Water Has No Fixed Place .•Water Covers 71 % Of Earth’s Surface .

FORMS OF WATER – SOLID

•Ice Is The Solid Form Of Water .•When Water Temperature Is Very Low It Freezes And Ice Is Formed.

FORMS OF WATER – LIQUID

Liquid Form Of Water Is Water

FORM OF WATER – GAS

Steam Or Water Vapor Is The Gas Form Of Water .

Water Is Converted Into Steam When Heated.

Clouds Are Formed By Water Vapor.

SALT WATER

Salt Water Contains High Amount Of Salt .It Covers Major Part Of Earth.Ex Sea , Lagoons

FRESH WATER

It Can Be Used For Drinking.It Covers A Very Small Part Of The Earth (Less Than 2 % )Ex- Lake And Rivers

SOURCES OF FRESH WATER

Pond

GroundWater

Springs

Glacier

FRESH WATER AT HOME

Hand Pump

WellWater Tap

USES OF WATER

For Drinking

For Agriculture

In Industries

Transportation

CLEAN WATER AND DIRTY WATER

The Water That Is Used To Drink Should Be Clean .

Dirty Water Has Germs That Can Make Us Fall Sick .

USES OF WATER

Drinking, Bathing, Watering Plants, Cooking, etc

PROPERTIES OF WATER

Colourless, Odourless, Has No Shape

THE END