CBSE Class 6 Science Air Around Us
Air and Its Presence
All human beings need oxygen for respiration. Where is oxygen present? In the air? What is air? Air is a mixture of gases. Learn about all the gases present in the air.Components of Air
Components of airOxygen
Describes preparation, properties and uses of oxygen and ozone. Study of various oxides- acidic, basic ,amphoteric and neutral oxides
