SEBA Class 6 Science (English Medium) Lesson 7 – “Air Around Us” Summary & Solutions
Looking for SEBA Class 6 Science (English Medium) Lesson 7 – “Air Around Us” solutions? At Ospin Academy, we provide detailed NCERT-based textbook answers, multiple-choice questions (MCQs), and a complete chapter summary to help students in Assam prepare for their exams.
📖 Chapter Overview:
Air is essential for all living beings. This chapter explains the composition, importance, and role of air, with examples from Assam’s climate and environment.
- Composition of Air: Oxygen, nitrogen, carbon dioxide, and other gases
- Importance of Air: For breathing, burning, and plant growth
- Examples from Assam: – Air pollution in Guwahati due to vehicles – Role of air in Assam’s agriculture and rainfall – Impact of air on Assam’s tea plantations
- Uses of Air: Wind energy, weather changes, and transport
📌 Key Topics Covered:
- ⭐ What is air made of?
- ⭐ How does air pollution affect Assam?
- ⭐ Why is oxygen important for living beings?
- ⭐ How does air help in cloud formation?
- ⭐ What are the uses of wind energy?
📝 Why Use Our Solutions?
- ✅ Exam-Oriented Solutions: Fully NCERT-aligned answers for Class 6 Science Lesson 7 (Part 2)
- ✅ MCQs & Extra Questions: Prepare better with objective-type questions
- ✅ Concept Clarity: Well-explained answers with examples from Assam to help students relate to real-life applications
- ✅ Quick Revision Notes: Summarized notes for last-minute SEBA exam revision
Start learning SEBA Class 6 Science (English Medium) Lesson 7 – Air Around Us with Ospin Academy’s step-by-step solutions, specially designed for students in Assam!
Class 6 Science (English Medium) PDF Solutions 2025-26 | SCERT Assam
Download the Class 6 Science SCERT Assam (English Medium) PDF for SEBA Assam students. Get the latest NCERT-based textbook, chapter-wise solutions, MCQs, short and long-answer questions, and important revision notes. This SEBA Class 6 Science Book PDF covers Physics, Chemistry, and Biology, helping students prepare effectively for exams.
Exercise |
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1 . What is the composition of air?
Ans: The composition of air are Water vapour, oxygen, nitrogen, carbon dioxide, dust and smoke.
2. Which gas in the atmosphere is essential for respiration?
Ans: Oxygen in the atmosphere is essential for respiration.
3. How will you prove that air supports burning?
Ans: Air support burning can be proved by an experiment.
Fix two small candles of the same size in the middle of two shallow containers. Now, fill the containers with some water. Light the candles and then cover each one of them with an inverted glass. Observed carefully, the burning of the candle must be due to the presence of some components of air. Burning can occur only in the presence of oxygen. We see that one component of air is oxygen. now, the amount of air and hence its oxygen components inside each glass in our experiment, is limited. Most of this oxygen is used up by the burning candle, it can no longer burn and and blows out. Also, water rises up in the glass once the candle blows out. However, this rise in water level should not be associated with the amount of oxygen utilized in burning the candle.
4. How will you show that air is dissolved in water?
Ans: Take some water in a glass vessel or beaker. Heat it slowly on a tripod stand. Well before the water begins to boil, look carefully at the inner surface of the vessel. We see tiny bubbles on the 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 shows that air is dissolved in water.
5. Why does a lump of cotton wool shrink in water?
Ans: The lump of cotton wool shrinks in water because a lump of cotton wool has air among gaps of cotton fibers. When water replaces the air from these gaps, the cotton lump becomes heavy.
6. The layer of air around the earth is known as __________.
Ans: Atmosphere.
7. The component of air used by green plants to make their food is __________.
Ans: Carbon dioxide.
8. List five activities that are possible due to the presence of air.
Ans: The five activities that are possible due to the presence of air are:
(i) Photosynthesis.
(ii) Transpiration.
(iii) Respiration.
(iv) Winnowing.
(v) Cloud formation.
9. How do plants and animals help each other in the exchange of gasses in the atmosphere?
Ans: Animals and plants use oxygen from air during respiration and release carbon dioxide gas in air. Green plants also release oxygen gas by using carbon dioxide during photosynthesis. Hence, in this way plants and animals help each other in the exchange of gases in the atmosphere.
SEBA Class 6 Science Lesson 7 – Air Around Us FAQs
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