Air around Us Class 6 PPT

 Page 1


About the AIR
? Air is the mixture of gases on the earth.
? A thick blanket of air surrounding the earth’s surface is 
called as atmosphere.
? The moving air is called as wind.
? These are the figures that moves with the help of wind.
Page 2


About the AIR
? Air is the mixture of gases on the earth.
? A thick blanket of air surrounding the earth’s surface is 
called as atmosphere.
? The moving air is called as wind.
? These are the figures that moves with the help of wind.
COMPOSITION OF AIR
? These substances which made up air can be now 
individually identified.
? The composition of the air is shown below.
? Air contains mainly oxygen, nitrogen and remaining 
includes carbon dioxide, noble gases, water vapour, 
dust particles, and traces of other gases.
Page 3


About the AIR
? Air is the mixture of gases on the earth.
? A thick blanket of air surrounding the earth’s surface is 
called as atmosphere.
? The moving air is called as wind.
? These are the figures that moves with the help of wind.
COMPOSITION OF AIR
? These substances which made up air can be now 
individually identified.
? The composition of the air is shown below.
? Air contains mainly oxygen, nitrogen and remaining 
includes carbon dioxide, noble gases, water vapour, 
dust particles, and traces of other gases.
Nitrogen and oxygen
? Air contains about 78% nitrogen and 28% oxygen.
? Oxygen in air supports burning whereas nitrogen does 
not.
Page 4


About the AIR
? Air is the mixture of gases on the earth.
? A thick blanket of air surrounding the earth’s surface is 
called as atmosphere.
? The moving air is called as wind.
? These are the figures that moves with the help of wind.
COMPOSITION OF AIR
? These substances which made up air can be now 
individually identified.
? The composition of the air is shown below.
? Air contains mainly oxygen, nitrogen and remaining 
includes carbon dioxide, noble gases, water vapour, 
dust particles, and traces of other gases.
Nitrogen and oxygen
? Air contains about 78% nitrogen and 28% oxygen.
? Oxygen in air supports burning whereas nitrogen does 
not.
Carbon dioxide
? Air contains about 0.003% of carbon dioxide.
? Plants and animals take in oxygen and give out carbon 
dioxide during respiration.
? During burning, carbon dioxide is also produced.
Page 5


About the AIR
? Air is the mixture of gases on the earth.
? A thick blanket of air surrounding the earth’s surface is 
called as atmosphere.
? The moving air is called as wind.
? These are the figures that moves with the help of wind.
COMPOSITION OF AIR
? These substances which made up air can be now 
individually identified.
? The composition of the air is shown below.
? Air contains mainly oxygen, nitrogen and remaining 
includes carbon dioxide, noble gases, water vapour, 
dust particles, and traces of other gases.
Nitrogen and oxygen
? Air contains about 78% nitrogen and 28% oxygen.
? Oxygen in air supports burning whereas nitrogen does 
not.
Carbon dioxide
? Air contains about 0.003% of carbon dioxide.
? Plants and animals take in oxygen and give out carbon 
dioxide during respiration.
? During burning, carbon dioxide is also produced.
Water Vapour
? Air contains varying amounts of  water vapour 
depending on the weather of a place.
? The sun heats the water in oceans and seas. This water 
evaporates and forms.
? Here is an image of wet clothes dry.