This document discusses air and water as natural resources. It describes air as invisible but always surrounding us, and that humans, animals and plants need air to breathe. It then discusses different types of winds like breezes, gales, and storms. It also covers the properties and forms of water, including solid, liquid, and gas, and discusses fresh water versus salt water. It summarizes the key uses of both air and water.

1. AIR AND WATER
BY CHANDNI ATHI

2. 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

3. BREEZE : A GENTLE WIND
•Gentle Slow Moving Air Is Called As Breeze.
•We Feel Very Pleasant With The Breezing Air.

4. GALE : STRONG WIND
•Wind Blowing Fast And Slightly Strong Is Called As Gale
•It Can Move The Leaves And Branches Of Trees

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

6. HURRICANE : VERY SEVERE
STORM

7. EFFECTS OF STROM
Uprooted Trees
Flooded Land
Washed Away Farms
Destroyed Houses

8. USE OF WIND
•Wind Helps To Move The Sail Boat .
•Wind Moves The Fan Of The Wind Mill

9. On windy day kids can fly kites.
Wet clothes dry fast in windy air.

10. PROPERTIES OF AIR
Invisible Occupies Space, Has Weight

11. WATER

12. 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 .

13. FORMS OF WATER – SOLID
•Ice Is The Solid Form Of Water .
•When Water Temperature Is Very Low It
Freezes And Ice Is Formed.

14. FORMS OF WATER – LIQUID
Liquid Form Of Water Is Water

15. 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.

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

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

18. SOURCES OF FRESH WATER
Pond
Ground
Water
Springs
Glacier

19. FRESH WATER AT HOME
Hand Pump
Well
Water Tap

20. USES OF WATER
For Drinking
For Agriculture
In Industries
Transportation

21. 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 .

22. USES OF WATER
Drinking, Bathing, Watering Plants, Cooking,
etc

23. PROPERTIES OF WATER
Colourless, Odourless, Has No Shape

24. THE END