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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