Air is one of the 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 breath.
When Air moves it is called as Wind. We feel air only
when it moves.
Wind is classified based on it’s speeds. Sometimes it can
be gentle or strong also.
Breeze: A gentle Wind
Gently or slowly 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 tress.
Storm: Very Strong Wind
Very strong wind with rain or snow, is called as Storm.
Hurricane: Very severe Storm
Effects of Storm
Washed away farms
Use of Wind
Wind helps to move the sail boat.
Wind moves the fan of the windmill
On windy day kids can fly Kites.
Wet clothes dry fast in windy air
Water is one of the natural resource.
Humans, Animals and plants need water to drink and
Water has no fixed shape.
Water covers 71% of the Earth’s surface.
Form of Water – Solid
Ice is the solid form of water.
When water temperature is very low then it freezes and Ice is
Form 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.
Cloud are formed by water vapor.
Water Vapor or Steam
Saltwater contains high amount of salt.
It covers major part of Earth.
Sea / Ocean
Fresh water has low concentration of dissolved salts.
It can be used for drinking.
It covers a very small part of earth. (less than 2%)
Sources of Fresh Water
Fresh water at Home
Uses of Water
Uses of Water at Home
More uses of Water at Home
Water: Fun Activities
Water is a universal solvent because many things can be mixed in water
Things which doesn’t dissolve in water are Oil, Stones, etc.
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.
Water Purification at Home
Boiling kills all types of germs.
Water filters removed various types of impurities from water.
Water Storage at Home
After boiling or filtering, store the clean water in closed and clean
Prevent it from getting dirty.
Dissolve - To Mix
Germs - Small living things that can make us sick
Purify - To Clean
Thank You !!!