Class 6 Science Chapter 15 | NCERT | Air Around us

Air Around us, Science class 6 chapter 15
Topics Covered -
1. Is air present everywhere around us?
2. What is air made up of?
3. Water vapour
4. Oxygen
5. Carbon dioxide
6. Dust and smoke
7. Nitrogen
8. How does oxygen becomes available to plants and animals living in water and soil
9. How is the oxygen in the atmosphere replaced
10.Windmill