NCERT Solutions for Class 6 Science Chapter 15 – Air Around Us

Explore our comprehensive NCERT Solutions for Class 6 Science Chapter 15: Air Around Us. This chapter discusses the composition of air, its properties, and the importance of air in sustaining life. Our detailed solutions help students understand how air is essential for various processes, including respiration and combustion. Ideal for exam preparation and classroom learning, these answers enhance students’ understanding of atmospheric science.

Question 1

What is the composition of air?

Answer 1

Air is mixture of nitrogen, oxygen, carbon dioxide, water vapour and a few other gases. Some dust particles may also be present in it. in fact nitrogen and oxygen togather make up 99% of the air and remaining 1% is carbon dioxide and other gases.

Question 2

Which gas in the atmosphere is essential for respiration?

Answer 2

Oxygen.

Question 3

How will you show that air supports burning?

Answer 3

Take a small burning candle. Cover the burning candle with a glass jar. After few minutes the candle is extinguished. As the supply of air is stopped due to glass jar the burning of candle is also stopped. This experiment proves that air supports burning.

Question 4

How will you show that air is dissolved in water?

Answer 4

Take some water in a glass vessel or beaker. Heat it slowly on a tripod stand. look carefully at the inner surface of the vessel before reachin boiling point tiny bubbles on the inside rising up . On heating, air dissolved in water escapes in the form of these bubbles.

Question 5

Why does a lump of cotton wool shrink in water?

Answer 5

A lots of volume of air present in the cotton fibres. When water replaces the air from these gaps the cotton lump becomes heavy and shrinks due to removal of air gaps.<

Question 6

The layer of air around the earth is known as………………….

Answer 6

The layer of air around the earth is known as atmosphere

Question 7

The component of air used by green plants to make their food, is………………….

Answer 7

The component of air used by green plants to make their food, is Carbon dioxide

Question 8

List five activities that are possible due to presence of air.

Answer 8

(a) Flying kite.
(b) Burning something
(c) To breathe for survival
(d) A ship moving because of sail.
(e) For photosynthesis

Question 9

How do plants and animals help each other in exchange of gases in the atmosphere?

Answer 9

Animals and plants both respiration and both use oxygen from air during respiration and release carbon dioxide. But green plants use carbon dioxide for making food by the process of photosynthesis and release oxygen gas . So we can say that animals and plants help each other in exchange of gases.

Our NCERT Solutions for Class 6 Science Chapter 15 clarify the crucial role of air in our environment. Continue to explore our other chapters and educational resources to enrich your science education and understanding of the world around you.