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Air Around Us Class 6 Notes CBSE Science Chapter 15 (Free PDF Download)

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Last updated date: 04th Mar 2024
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Revision Notes for CBSE Class 6 Science Chapter 15 Air Around Us - Free PDF Download

Class 6 Science Chapter 15 - Air Around Us: Get ready to unravel the mysteries of the invisible companion we breathe—air. Explore its properties, learn how it impacts our surroundings, and discover the essential role it plays in sustaining life on our planet. Let's dive into the breath of science! Free PDF download of Class 6 Science Chapter 15 - Air Around Us Revision Notes & Short Key-notes prepared by expert Science teachers from the latest edition of CBSE(NCERT) books.


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Access Class 6 Science Chapter 15 - Air Around Us Notes

Air is an invisible gaseous material that surrounds the earth and is primarily composed of oxygen and nitrogen.

  1. Atmosphere refers to the blanket of air that surrounds the world.

  2. Air can be found in all places. Although we cannot see air, we can feel it.

  3. The wind is the movement of air.

  4. Air takes up space and is found in water and dirt.

  5. Nitrogen, oxygen, carbon dioxide, water vapour, and a few more gases make up air. It may also contain some dust particles.

  6. Life on Earth depends on the atmosphere.

  7. Aquatic species breathe dissolved air in water, and plants and animals rely on each other for oxygen and carbon dioxide exchange from the air.


Different Layers of Atmosphere:

  1. Troposphere 

  2. Stratosphere 

  3. Mesosphere 

  4. Thermosphere 


Constituent of Air:

The main components of air are nitrogen and oxygen. Nitrogen makes up about 78 per cent of the air we breathe. Nearly 21% of the air is made up of oxygen. Carbon dioxide, water vapour, dust particles, and other gases make up the remaining 1%. The composition of gases in the air varies by location.

  1. Nitrogen: Plants require nitrogen in order to grow.

  2. Oxygen: All living things use oxygen to breathe and to help them burn food.

  3. Carbon Dioxide: During respiration, plants and animals absorb oxygen and create carbon dioxide. Photosynthesis is carried out by green plants. It is emitted when you burn something.

  4. Water Vapour: Water vapour is formed when water evaporates. Humidity refers to the amount of water vapour in the air. Variates from place to place, as well as during the day and night in the same location.

  5. Dust and Smoke: Smoke comprises a small number of gases as well as fine dust particles. It is really dangerous. The number of dust particles in the air changes throughout time and from location to place.


Importance of Air:

  1. Burning is aided by the presence of air.

  2. Breathing necessitates the presence of air.

  3. Plants require air to produce food.

  4. Birds fly across the air. Air pressure also causes planes to rise in the air.

  5. The wind is the term for moving air. The windmill rotates because of the wind.

  6. Air helps in the rapid evaporation of sweat, which keeps us cool.


Chapter Summary - Air Around Us

In Class 6 Science Chapter 15, Air Around Us, we embark on an exciting journey to understand the invisible yet powerful force of air. Discovering its properties and composition, students learn how air surrounds us and influences weather phenomena. Engaging activities and relatable examples make learning about the atmosphere fun. From exploring the importance of air for living beings to understanding its role in various natural processes, this chapter creates a breeze of knowledge. With clear explanations and interactive learning, students develop a newfound appreciation for the air around us, realizing its significance in sustaining life on Earth.


Benefits of Referring to Vedantu’s Revision Notes for Class 6 Science Chapter 15 - Air Around Us

Step into the world of Vedantu's Revision Notes for Class 6 Science Chapter 15 - Air Around Us! Like a gentle breeze guiding your learning, these notes are designed to make the invisible world of air not only understandable but also fascinating.


1. Quick Summaries:

Glide through the complexities of air with quick summaries, capturing the essence of key concepts like a refreshing breath of knowledge.


2. Simplified Complexity:

Much like unraveling a gentle breeze, these notes simplify intricate topics, ensuring that understanding the nuances of Air Around Us becomes a breeze for every student.


3. Efficient Last-Minute Prep:

Just as the wind swiftly prepares the atmosphere for change, these notes efficiently ready you for exams, making last-minute preparations effective and stress-free.


4. Enhanced Retention:

Picture a pocket of air holding essential information—Vedantu's Revision Notes help you grasp and retain crucial details, ensuring a strong foundation in understanding the chapter.


5. Exam Preparation Support:

Sail smoothly through exam preparation with key points and tips, acting as your compass in the atmospheric sea of knowledge about Air Around Us.


6. Time-Saving Consolidation:

Much like a weather forecast consolidates information, these notes save time by presenting important details in one place, streamlining your study process.


7. Prioritizes Important Topics and Questions:

Navigate through the atmospheric layers of information with ease, as these notes prioritize important topics and questions, ensuring your focus on the essential aspects of Air Around Us.


Conclusion

For an enhanced comprehension of this subject, NCERT - Class 6 Science Chapter 15 - Air Around Us, thoughtfully prepared by experienced educators at Vedantu is your invaluable companion. These notes break down the complexities of “Air Around Us” into easily digestible sections, helping you grasp new concepts and navigate through questions effortlessly and quickly at the last minute as well. By immersing yourself in these notes, you not only prepare for your studies more efficiently but also develop a profound understanding of the subject matter.

FAQs on Air Around Us Class 6 Notes CBSE Science Chapter 15 (Free PDF Download)

1. What is air made up of according to Class 6 Science Chapter 15 Air Around Us?

The majority of naturally occurring gases, or around 78% of air, are composed of nitrogen. The second most prevalent gas in the atmosphere is oxygen, which has a prevalence of about 21%. An inert gas called argon makes about 0.93% of the entire makeup. Carbon dioxide, neon, helium, methane, krypton, hydrogen, nitrous oxide, xenon, ozone, iodine, carbon monoxide, water vapours, and ammonia are all present in trace levels in the atmosphere.

2. How will you prove that air supports burning with reference to Chapter 15 of Class 6?

We can demonstrate that burning occurs in the air by performing the following experiment:


Put two candles on a table that are already burning. Now, place a glass tumbler on top of one candle to cover it.


You'll observe that although the other candle keeps burning, the candle covered by the inverted glass tumbler eventually goes out. The absence of air inside the glass tumbler is the reason for this. However, the air that was initially in the glass tumbler gets burned away. This demonstrates that burning occurs in the air. You can refer to other Air Around Us Notes on Vedantu for Class 6.

3. Does air have weight according to Class 6 Science Chapter 15 Air Around Us?

Since we are aware that air is a substance, it must be heavy. By weighing an inflated balloon and comparing its weight to the weight gained when it is not inflated, you may determine it. A balloon that has been inflated will weigh more than one that has not. We can refer to more questions related to air on Vedantu and their notes related to the same.

4. What are the 6 uses of air according to Class 6 Science Chapter 15 Air Around Us?

Natural resources like air are widely available. The first thing we can say when discussing the uses of air is that it is the most crucial component for maintaining the health and vigour of all life on earth. Having said that, the air is extremely beneficial and has many uses, much like water, including supporting life and growth, combustion, maintaining temperature, supplying energy, photosynthesis, etc.

5. Can we see air yes or no?

We have evolved retinas that are sensitive to the same wavelengths of light that flow through the air without being impeded; otherwise, we wouldn't be able to see anything at all. This is why air appears transparent to our eyes. Air is simply in motion, and pressure changes in the atmosphere are what generate wind.