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Important Questions for CBSE Class 6 Science Chapter 15 - Air Around Us

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Last updated date: 22nd Mar 2024
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CBSE Class 6 Science Important Questions Chapter 15 - Air Around Us - Free PDF Download

Register Online for NCERT Class 6 Science tuition on Vedantu.com to score more marks in CBSE board examination. Vedantu is a platform that provides free CBSE Solutions (NCERT) and other study materials for students. Maths Students who are looking for the better solutions ,they can download Class 6 Maths NCERT Solutions to help you to revise complete syllabus and score more marks in your examinations. Free PDF download of Important Questions with Solutions for CBSE Class 6 Science Chapter 15 - Air Around Us prepared by expert Science teachers from the latest edition of CBSE(NCERT) books.


Download CBSE Class 6 Science Important Questions 2023-24 PDF

Also, check CBSE Class 6 Science Important Questions for other chapters:

CBSE Class 6 Science Important Questions

Sl.No

Chapter No

Chapter Name

1

Chapter 1

Food: Where Does It Come From?

2

Chapter 2

Components of Food

3

Chapter 3

Fibre to Fabric

4

Chapter 4

Sorting Materials into Groups

5

Chapter 5

Separation of Substances

6

Chapter 6

Changes around Us

7

Chapter 7

Getting to Know Plants

8

Chapter 8

Body Movements

9

Chapter 9

The Living Organisms and Their Surroundings

10

Chapter 10

Motion and Measurement of Distances

11

Chapter 11

Light, Shadows and Reflections

12

Chapter 12

Electricity and Circuits

13

Chapter 13

Fun with Magnets

14

Chapter 14

Water

15

Chapter 15

Air Around Us

16

Chapter 16

Garbage In, Garbage Out

Study Important Questions for Class 6 Science Chapter 15 – Air Around Us

Very Short Answer Questions:

1. State whether true or false. If false, correct the statement. 

  1. Air is always stationary. 

Ans: False. Air can move and moving air is called wind. 

  1. Air is present everywhere.

Ans: True. 

  1. Air occupies space. 

Ans: True.

  1. Air is coloured. 

Ans: False. Air is transparent and colourless. 

  1. The layer of air surrounding earth is called oxygen. 

Ans: False. The layer of air surrounding the earth is called the atmosphere.

  1. Nitrogen does not support burning. 

Ans: True.

  1. Plants use oxygen for respiration and carbon dioxide for photosynthesis.

Ans: True. 

  1. Dust particles are present in the air. 

Ans: True.

  1. Oxygen cannot be dissolved in water.

Ans: False. Oxygen can be dissolved in water.

  1. Windmills require electricity to function.

Ans: False. Windmills function by the action of wind to generate electricity.

Short Answer Questions:                                                                                     3 Marks

2. Why do mountaineers carry oxygen cylinders while climbing high altitudes?

Ans: The atmosphere thins out at high heights. As a result, the amount of oxygen available at high elevations will decrease and at high elevations, there will be less oxygen available for breathing and respiration. Therefore, mountaineers carry oxygen cylinders in order to breathe efficiently. 

3. Why does burning a fire in a closed room cause suffocation?

Ans: Any fuel that is burned consumes the oxygen in the room and produces carbon dioxide. Because the chamber is closed, neither new oxygen nor accumulated carbon dioxide can enter or exit. As a result, we have less oxygen to breathe and more carbon dioxide enters our bodies. Carbon dioxide is poisonous to our bodies, and because there is less oxygen available for breathing when carbon dioxide is burned in a closed space, asphyxia occurs.

4. How is oxygen in the atmosphere replaced?

Ans: Organisms utilise oxygen for their respiration. Because all living species require oxygen to breathe, the oxygen level will drop. The action of photosynthesis replaces oxygen in the atmosphere. The process by which plants produce food is known as photosynthesis. In the presence of sunlight and chlorophyll, plants use carbon dioxide and water to make glucose and oxygen. This process produces oxygen, which is then released into the atmosphere.

5. Why should we breathe through the nose and not the mouth?

Ans: Our nose contains two nostrils, each coated with a dense layer of tiny hairs. These hairs filter the air we breathe in, removing dust and smoke particles. As a result, dangerous airborne particles do not reach our bodies. Because our mouths lack such a filtering mechanism, breathing via our mouths increases the odds of dangerous dust and smoke particles entering our lungs.

6. Why do earthworms come out of the soil during heavy rains?

Ans: There are spaces in the soil where air can be found. Animals that dwell in the soil need the air contained in the soil spaces to breathe. During severe rains, all of these air spaces are filled with water, making it impossible to breathe. That is why, following heavy rains, soil dwellers such as earthworms emerge from the soil to get oxygen directly from the air.


Long Answer Questions:                                                                            5 Marks

7. What is the importance of air in our lives?

Ans: We use air in various day to day activities such as:

  • Air contains oxygen, which we need to breathe.

  • Plants consume carbon dioxide in the air during photosynthesis.

  • Air produces a protective atmosphere over the globe, which helps to keep the temperature stable.

  • Air is required for the movement of ships, yachts, and planes.

  • Birds need air to fly.

  • Air is required for pollination of seeds.

  • Windmills are used to generate electricity.

 

Chapter Summary - Air Around Us

In Class 6 Science Chapter 15 - Air Around Us, students explore the invisible world of air. Unveiling its properties, the chapter explains how air influences weather and sustains life. Engaging activities and relatable examples make learning about the atmosphere enjoyable, fostering a deeper understanding of this essential element.


Weight of the World: Understanding Air Around Us

Explore the weight of air and how it exerts pressure with these 10 important points, influencing our surroundings through the phenomena of atmospheric pressure:


1. Invisible Atmosphere: Air is an invisible mixture of gases that surrounds the Earth, creating an atmosphere.


2. Components of Air: Air is mainly composed of nitrogen, oxygen, carbon dioxide, and small amounts of other gases.


3. Breathing Air: We breathe in oxygen from the air, which is essential for our survival.


4. Air and Living Things: Animals, plants, and humans depend on air for their existence as it carries necessary gases.


5. Air Pressure: Air has weight and exerts pressure, creating atmospheric pressure, which affects our surroundings.


6. Wind and Movement: Differences in air pressure cause wind, influencing weather patterns and causing movements in the atmosphere.


7. Importance of Air for Fire: Air is necessary for combustion; it supports burning and keeps flames alive.


8. Air and Weather Changes: Understanding air helps explain weather changes, including winds, clouds, and rainfall.


9. Effects of Pollution: Human activities can pollute the air, causing environmental problems and health issues.


10. Conserving Air Quality: Learning about air pollution encourages us to adopt practices that preserve and improve air quality for a healthier planet.


What are the Benefits of Important Questions from Vedantu for Class 6 Science Chapter 15 - Air Around Us

Embark on an educational journey with Vedantu's Important Questions for Class 6 Science Chapter 15 - "Air Around Us," making the invisible world of air visible and engaging for young learners.


1. Focused Exploration:

Dive into the essential aspects of "Air Around Us" with targeted questions, efficiently guiding your study journey through key topics for a deeper understanding.


2. Exam Readiness and Calmness:

As a trusted companion for exams, these questions cover crucial areas, alleviating anxiety and ensuring you feel well-prepared to navigate the atmospheric challenges presented in the chapter.


3. Conceptual Foundation:

Like a gentle breeze reinforcing your understanding, these questions solidify fundamental concepts, ensuring a sturdy foundation in comprehending the mysteries of the air that surrounds us.


4. Time Management Mastery:

Sail smoothly through your study sessions, learning effective time management skills as these questions guide you through the atmospheric complexities, helping you grasp concepts efficiently.


5. Empowerment Through Self-Assessment:

Take charge of your learning voyage by using these questions for self-assessment, enabling you to track progress and gain confidence in navigating the intricacies of Air Around Us.


Important Related Links for CBSE 6 Science

Conclusion

Reviewing all the crucial questions for Class 6 Science Chapter 15 - Air Around Us provides students with a solid grasp of the chapter's topics. The extra and important questions for Class 6 Science Chapter 15 - Air Around Us engage in a concept-focused discussion, encompassing all chapter themes. This question-and-answer method proves time-saving during exam prep, offering an efficient way to revise the chapter and enhance understanding. Practising these important questions streamlines preparation and boosts confidence for the upcoming exams.

FAQs on Important Questions for CBSE Class 6 Science Chapter 15 - Air Around Us

1. What are the important questions for Chapter 15 ‘Air Around Us’ of Class 6 Science?

Vedantu provides students with Important Questions with Solutions for Chapter 15 of  CBSE Class 6 Science. These important questions are made by experts in the subject of Science. Students can score good marks in their CBSE Board Examinations with the help of these important questions. Vedantu even provides NCERT CBSE Solution and other important study materials for students to understand the chapters and important concepts better. Students can download these free PDFs through Vedantu’s online portal and mobile app.

2. What is air made up of according to Chapter 15 of Class 6 Science?

Air is the lightest element found in the entire universe. For a very long time, there were people who thought that air was made with just a single substance. However, throughout the years there were many experiments that were done on air. These experiments proved that air is not made up of a single substance, instead, it is a mixture of a lot of gases. Some of these components that contribute to this mixture include Water Vapour, Oxygen, Carbon Dioxide, Smoke and Dust, and Nitrogen.

3. How will you prove that air is present everywhere around us as discussed in Chapter 15 of Class 6 Science?

Air is present around us at all times. To prove that air is present everywhere around us, you can take an empty glass bottle and turn it upside down. Then you need to dip the open part of the bottle into a bowl filled with water. When you tilt the bottle slightly upwards, you will notice bubbles getting formed. This proves that there was air present in the bottle which came out in the form of bubbles.

4. How will you prove that air supports burning,according to Chapter 15 of Class 6 Science?

To prove that air supports burning, you can place two candles measuring the same length on a tabletop. You can then light both the candles and cover one of the lit candles with an inverted glass tumbler. You will be able to notice that the candle that was covered got extinguished after a while whereas the other candle continues to burn. The main reason why this happens is that the air inside the inverted glass tumbler is limited. Therefore, this air, known as oxygen, helps to support burning.

5. Why does cotton wool shrink in water according to Chapter 15 of Class 6 Science?

Cotton is the lightest material available to us. It is the lightest element after the air. Although it is light, a lump of cotton wool can end up shrinking in water. The main reason why this happens is that the air inside the lump of cotton gets replaced with water. This in turn sticks the layers of cotton together which soaks up all the water. Due to this, the lump of cotton wool ends up shrinking in water.