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15. AIR AROUND US Science class 6 in English Medium ncert book solutions Exercise (NCERT Text Book)
15. AIR AROUND US Exercise (NCERT Text Book) – Complete NCERT Book Solutions for Class 6 Science (English Medium). Get all chapter explanations, extra questions, solved examples and additional practice questions for 15. AIR AROUND US Exercise (NCERT Text Book) to help you master concepts and score higher.
15. AIR AROUND US Science class 6 in English Medium ncert book solutions Exercise (NCERT Text Book)
NCERT Solutions for Class 6 Science play an important role in helping students understand the concepts of the chapter 15. AIR AROUND US clearly. This chapter includes the topic Exercise (NCERT Text Book), which is essential from both academic and examination point of view. The solutions provided here are prepared strictly according to the latest NCERT syllabus and follow the guidelines of CBSE to ensure accuracy and relevance. Each question is explained in a simple and student-friendly manner so that learners can grasp the concepts without confusion. These NCERT Solutions are useful for regular study, homework help, and exam preparation. All textbook questions are solved step by step to improve problem-solving skills and conceptual clarity. Students of Class 6 studying Science can use these solutions to revise important topics, understand difficult questions, and practise effectively before examinations. The chapter 15. AIR AROUND US is explained in a structured way, making it easier for students to connect the theory with the topic Exercise (NCERT Text Book). By studying these updated NCERT Solutions for Class 6 Science, students can build a strong foundation, boost their confidence, and score better marks in school and board exams.
15. AIR AROUND US
Exercise (NCERT Text Book)
15. AIR AROUND US
Exercise:
Q1: What is the composition of air?
Ans: The air contains nitrogen 79%, oxygen 21%, carbon dioxide 1%, some other gass, water vapour. Air also contains dust particles and smoke.
Q2: Which gas in the atmosphere is essential for respiration?
Ans: Oxygen is the gas, which is essential for respiration.
Q3: How will you prove that air supports burning?
Ans: When we light a candle in a tub with some filled water and also cover the candle with inverted glass. We observe that the candle blows out after burning for some time, and the water level inside the inverted glass rises up to some
extent. The air component, oxygen is used in burning, so remains space is occupied by water and it rises up. This shows that air support burning.
Q4: How will you show that air is dissolved in water?
Ans: When water is boiled in a pan, we notice that some bubbles form around the inner surface of the pan. It means air is dissolving in water.
Q5: Why does a lump of cotton wool shrink in water?
Ans: A lump of cotton wool shrinks when immersed in water. This is because air present in the cotton wool escapes. Thus, the volume of the cotton wool decreases.
Q6: The layer of air around the earth is known as ___________.
Ans: The layer of air around the earth is known as atmosphere.
Q7: The component of air used by green plants to make their food, is ______.
Ans: The component of air used by green plants to make their food, is carbon dioxide.
Q8: List five activities that are possible due to the presence of air.
Ans:
(i) Respiration
(ii) Burning
(iii) Photosynthesis
(vi) Flying of kites
(v) Movement of sailing yachts, gliders, parachutes, airplanes
(vi) Generation of electricity by windmills
Q9: How do plants and animals help each other in the exchange of gases in the atmosphere?
Ans: All animals do respiration and they release carbon dioxide in the atmosphere and take oxygen during this process whereas, plants utilise carbon dioxide in the process of photosynthesis and release oxygen. Here we see that gaseous exchanges take place among animals and plants.
See other sub-topics of this chapter:
1. Chapter Review 2. Exercise (NCERT Text Book) 3. Important Questions with solution 4. Exempler Problems As Assignment