Air Around Us Class 6 Questions and Answers with PDF (2025-26)
In NCERT Solutions for Class 6 Science Chapter 11 - Air Around Us, we explore the essential components and properties of the air that envelops our planet. Class 6 Science Chapter 11 delves into the significance of air in sustaining life, its composition, and the various layers of the atmosphere. From understanding the role of oxygen in respiration to learning about the importance of nitrogen, carbon dioxide, and other gases, this chapter provides a comprehensive overview of the air we breathe. Class 6 Science NCERT Solutions provides detailed answers to all questions in the NCERT textbook. Class 6 Science Chapter Air Around Us Questions Answers offers detailed explanations and answers to help students grasp these concepts thoroughly and confidently.
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Download the FREE PDF of NCERT Science Class 6 Chapter 11 Question Answer prepared by Vedantu Master Teachers and are updated according to the Class 6 Science syllabus. Start with Vedantu to pursue a path of academic excellence!
Quick Insights into Class 6 Science Chapter 11 Air Around Us Question Answer
Air Around Us Class 6 PDF helps students understand the essential role of air in our environment and its significance for all living beings.
It helps to explore the important concepts of the composition and properties of air, which are fundamental for understanding various natural processes.
Air Around Us Class 6 delves into the components of air, the importance of oxygen, nitrogen, and other gases, and the phenomena of wind and its effects on weather.
The NCERT Class 6 Science Air Around Us Questions Answers clearly explain all topics, ensuring thorough exam preparation.
It also helps students to develop proficiency in understanding the properties and behaviour of air, enhancing observational and analytical skills.
Vedantu offers additional resources such as class notes, important concepts, diagrams, and exemplar solutions to reinforce learning and ensure a strong grasp of foundational environmental principles.
FAQs on NCERT Solutions for Class 6 Science Chapter 15 Air Around Us - 2025-26
1. How do you solve the textbook question, 'Prove with an experiment that air supports burning' as per the NCERT guidelines for Chapter 15?
To correctly solve this question according to the NCERT solutions methodology, you should describe the classic candle experiment with the following steps:
- Step 1: Place two lit candles of the same size on a flat surface like a table.
- Step 2: Cover one of the burning candles with an inverted glass tumbler.
- Step 3: Observe both candles for a few minutes.
- Observation: You will notice that the candle covered by the tumbler extinguishes after a short while, whereas the uncovered candle continues to burn.
- Conclusion: The covered candle went out because the limited supply of oxygen, a component of air necessary for combustion, was used up. This experiment demonstrates that air is essential for burning.
2. What is the correct way to list the main components of air when answering a question from Class 6 Science Chapter 15?
As per the NCERT Solutions for Class 6 Science, air is a mixture of several gases. For a complete answer, you should list the following components:
- Nitrogen: The most abundant gas, making up about 78% of the air.
- Oxygen: The gas essential for respiration and burning, comprising about 21%.
- Carbon Dioxide: A small percentage used by plants for photosynthesis.
- Water Vapour: The gaseous form of water, the amount of which varies with weather.
- Dust and Smoke: Fine solid particles present as impurities in the air.
- Other Gases: Trace amounts of gases like Argon and Helium.
3. How do the NCERT Solutions for Chapter 15 explain the method to show that soil contains air?
The NCERT Solutions provide a simple experimental method to demonstrate the presence of air in soil. The correct steps to explain are:
- Step 1: Take a lump of dry soil in a beaker or glass.
- Step 2: Slowly pour water over the soil lump.
- Observation: As water is poured, you will see bubbles emerging from the soil.
- Conclusion: These bubbles are the air that was trapped in the empty spaces between the soil particles. The water displaces this trapped air, which then escapes as bubbles, proving that soil contains air.
4. According to the Class 6 Science textbook, how are windmills useful?
The NCERT Solutions for 'Air Around Us' explain that windmills utilize the power of moving air (wind). The key uses to mention in your answer are:
- Generating electricity.
- Drawing water from tubewells for irrigation.
- Operating flour mills to grind grain.
The solution emphasizes that a windmill's blades rotate due to the force of the wind, converting wind energy into mechanical or electrical energy.
5. Why is the balance of oxygen and carbon dioxide in the atmosphere crucial, as explained in Chapter 15?
The balance between oxygen and carbon dioxide is vital for life on Earth. The NCERT solutions explain this as a fundamental cycle:
- Animals and plants consume oxygen and release carbon dioxide during respiration.
- Green plants use this carbon dioxide during photosynthesis to create food, and in the process, they release oxygen back into the atmosphere.
This interdependence ensures that the concentration of both gases remains stable, sustaining both plant and animal life. A disruption in this balance could make the planet uninhabitable.
6. How do aquatic animals get oxygen to breathe when they live underwater?
The NCERT solutions for this chapter explain that oxygen is not just in the air we breathe but is also dissolved in water. Aquatic animals, such as fish, have special organs called gills that are adapted to extract this dissolved oxygen directly from the water, allowing them to respire and survive underwater.
7. What is a common misconception about the composition of air that Chapter 15 helps to clarify?
A common misconception is that air is a single substance, specifically oxygen. The NCERT Solutions for Chapter 15 clarify that air is actually a mixture, not a pure substance. While oxygen is vital for breathing, it only makes up about 21% of the air. The majority of air (78%) is nitrogen, along with other gases like carbon dioxide and water vapour, each playing a different role in the environment.
8. Why do mountaineers carry oxygen cylinders at high altitudes, according to the principles in 'Air Around Us'?
As per the concepts in this chapter, the atmosphere extends many kilometres above the Earth's surface. However, the air becomes thinner as one goes higher in altitude. This means the amount of available oxygen for breathing decreases significantly. To compensate for this lack of oxygen and avoid breathing difficulties, mountaineers must carry their own supply in oxygen cylinders.
