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NCERT Solutions for Class 6 Science Chapter 15 Air Around Us

Dive into the world of science with NCERT Solutions for Class 6 Science Chapter 15 - Air Around Us. These solutions serve as a valuable resource for students, offering a thorough understanding of essential concepts. The chapter, aligned with the 2023-24 CBSE syllabus, provides in-depth knowledge on various aspects of air, its constituents, wind, the presence of air in soil, the significance of oxygen for living organisms, the Earth's atmosphere, and the vital role of plants in our survival.

NCERT Solutions for Science Air Around Us

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Access Answers to NCERT Solutions for Class 6 Science Chapter 15 Air Around Us

Air Around Us

Frequently Asked Questions 

 

Q1:  List out the concepts discussed in Chapter 15 of NCERT Solutions for Class 6 Science.

 

The concepts discussed in Chapter 15 of NCERT Solutions for Class 6 Science are listed below:

 

Is air present everywhere around us?

What is air made up of?

How does oxygen become available to animals and plants living in water and soil?

How is the oxygen in the atmosphere replaced?

 

Q2:  How will you prove that air supports burning, covered in Chapter 15 of NCERT Solutions for Class 6 Science?

 

Place two candles of the same length on a table. Light both candles. Cover one of the candles with an inverted glass tumbler. We can observe that the candle covered with the glass tumbler got extinguished after some time, whereas the other candle continued burning. The candle gets extinguished because the air component inside of the glass tumbler, which supports burning, is limited. Most of the component is used up by the burning candle. However, the other candle is getting a continuous supply of air. This component of air, which supports burning, is known as oxygen.

 

Q3 : List five activities that are possible due to the presence of air from Chapter 15 of NCERT Solutions for Class 6 Science.

 

The five activities that are possible due to air are listed below:

Photosynthesis

Cloud formation

Respiration

Transpiration

Winnowing.

Question 1 :

 Which gas in the atmosphere is essential for respiration?

 

Answer :

Oxygen in the atmosphere is essential for respiration.

 


Question 2 :

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

 

Answer :

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

 


Question 3 :

What is the composition of air?

 

Answer :

Air comprises water vapor, oxygen, nitrogen, carbon dioxide, dust and smoke.

 


Question 4 :

How will you prove that air supports burning?

 

Answer :

Place two candles of the same length on a table. Light both candles. Cover one of the candles with an inverted glass tumbler. We can observe that the candle covered with the glass tumbler got extinguished after some time, whereas the other candle continued burning. The candle gets extinguished because the air component inside of the glass tumbler, which supports burning, is limited. Most of the component is used up by the burning candle. However, the other candle is getting a continuous supply of air. This component of air, which supports burning, is known as oxygen.

 


Question 5 :

How will you show that air is dissolved in water?

 

Answer :

Take some water in a container. Heat it slowly on a tripod stand. Before the water begins to boil, look at the inner surface of the container. We observe tiny bubbles inside. 

These bubbles come from the air dissolved in water. When you heat the water, to begin with, the air dissolved in it escapes. This experiment concludes that air is present in the water.

 


Question 6 :

Why does a lump of cotton wool shrink in water?

 

Answer :

The lump of cotton wool shrinks in water because the air inside the cotton lumps is replaced by water which makes the layer stick together.

 


Question 7 :

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

 

Answer :

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 the presence of air.

 

Answer :

The five activities that are possible due to air are as follows:

  1. Photosynthesis

  2. Cloud formation

  3. Respiration

  4. Transpiration

  5. Winnowing

 


Question 9 :

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

Answer :

During the process of respiration, animals and plants consume oxygen from the air and release carbon dioxide gas into the air. Besides, green plants also release oxygen gas by utilizing carbon dioxide during the process of photosynthesis. Hence, in this way, plants and animals help each other in the exchange of gasses in the atmosphere.

 


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