NCERT Solutions for Class 6 Science Chapter 15 Air Around Us

NCERT Solutions For Class 6 Science Chapter 15 PDF Free Download

NCERT Solutions for Class 6 Science Chapter 15 Air around us benefits the student in understanding the concepts thoroughly. These solutions are prepared by subject experts as per the latest CBSE syllabus.

The questions and the detailed answers to the questions will help you to comprehend the concepts and ideas given in CBSE class 6 Science examination. To score good marks in the examinations, students are advised to study NCERT solution for class 6 science.

This chapter gives knowledge on-air, constituents of air, wind, air present in soil and its importance, oxygen and its importance for living organisms, atmosphere and its importance and importance of plants for our survival.

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NCERT Solution For Class 6 Science Chapter 15 Part 1
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Access Answers of NCERT Solutions for Class 6 Science Chapter 15 Air around us

Exercise Questions

1. What is the composition of air?

Solution:

Air comprises of water vapor, Oxygen, Nitrogen, Carbon dioxide, dust and smoke.

2. Which gas in the atmosphere is essential for respiration?

Solution:

Oxygen in the atmosphere is essential for respiration.

3. How will you prove that air supports burning?

Solution:

Take a candle and place it in a tub, light the candle and fill the tub with water. The candle starts growing after some time. Now cover the candle with an inverted glass. You will find that the candle blows out after burning for some time, and the water level inside the inverted glass rises to some extent.

The component oxygen of air inside the glass is used up in burning. Therefore, water occupies that space. This shows that air supports burning.

4. How will you show that air is dissolved in water?

Solution:

Heat the tumbler filled with water. Before they start boiling bubbles occur, these bubbles are due to air present in water. This experiment concludes air is present in the water.

5. Why does a lump of cotton wool shrink in water?

Solution:

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

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

Solution:

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

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

Solution:

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

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

Solution:

Activities that are possible due to air are:

  1. Photosynthesis
  2. Cloud formation
  3. Respiration
  4. Transpiration
  5. Winnowing

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

Solution:

Plants take carbon dioxide to give out oxygen. This oxygen is used by animals for respiration to expel out carbon dioxide. This carbon dioxide is used by plants to prepare food. This way, plants and animals help each other in the exchange of gases in the atmosphere

Topics covered in NCERT Solutions for Class 6 Science Chapter 15 Air around us

  • 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?

Summary of NCERT Class 6 Science Chapter 15 :

Air is found everywhere. We cannot see air, but we can feel it.
Air in motion is called wind.
Air occupies space.
Air is present in water and soil.
Air is a mixture of nitrogen, oxygen, carbon dioxide, water vapour and a few other gases. Some dust particles may also be present in it.
Oxygen supports burning and is necessary for living organisms.
The envelope of air that surrounds the earth is known as the atmosphere.
The atmosphere is essential for life on earth.
Aquatic animals use dissolved air in water for respiration.
Plants and animal depend on each other for exchange of oxygen and carbon dioxide from air.

To score good marks in the examination students should solve the previous year question papers and sample papers. This will significantly help the students to determine the difficulty level of the questions and the marking scheme.

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Frequently Asked Questions on Chapter 15 Air around us

What is the composition of air?

Air comprises of water vapor, Oxygen, Nitrogen, Carbon dioxide, dust and smoke.

Which gas in the atmosphere is essential for respiration?

Oxygen in the atmosphere is essential for respiration.

How will you prove that air supports burning?

Take a candle and place it in a tub, light the candle and fill the tub with water. The candle starts growing after some time. Now cover the candle with an inverted glass. You will find that the candle blows out after burning for some time, and the water level inside the inverted glass rises to some extent.

The component oxygen of air inside the glass is used up in burning. Therefore, water occupies that space. This shows that air supports burning.

Why does a lump of cotton wool shrink in water?

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

How will you show that air is dissolved in water?

Heat the tumbler filled with water. Before they start boiling bubbles occur, these bubbles are due to air present in water. This experiment concludes air is present in the water.

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