NCERT Exemplar Class 6 Science Chapter 15 Solutions: Air Around Us
NCERT Exemplar Class 6 Science Solutions for Chapter 15 include topics like air, its features, and importance, different types of gases present in the air, life-supporting gas, etc. The NCERT Exemplar Class 6 Science Solutions are prepared by the subject matter experts, keeping in mind the latest syllabus approved by CBSE.
The NCERT Exemplar Class 6 Science Chapter 15 has 4 exercises that provide you with a better understanding of concepts discussed in the Chapter. All the exercises are engaging and carry 20 questions. You will find the solutions easy and detailed.
The NCERT Exemplar Class 6 Science Solutions for Chapter 15 are prepared by our experienced subject matter experts. The solutions are self-explanatory so you won’t have to look anywhere else for further understanding. In order to aim for good marks in the exam, we highly recommend you to use NCERT Exemplar Class 6 Science Solutions.
Important Topics of NCERT Exemplar Class 6 Science Chapter 15
The Chapter ‘Air Around Us’ of NCERT Exemplar for Class 6 Science includes thorough information regarding air, the composition of air, different elements present in the air, toxic and non-toxic elements present in the air, causes of air pollution, atmosphere and windmill to help you learn basic concepts easily.
Air is all around us. We can feel its presence when the leaves of the trees rustle or the clothes hanging on a clothes-line sway, or when the paper rolls along with the air. The moving air helps to move and fly objects. Air is made up of a mixture of gases such as oxygen, carbon-di-oxide, nitrogen, and water vapour. Etc. We cannot see air but it’s a very important element of the atmosphere. Without air, no life existence can be possible.
The nitrogen and oxygen are the two main components of the atmosphere. We cannot see air but we can sense it. Blowing air in a balloon or pumping up the cycle or a motor tire there’s all air. Air is essential for all living beings to breathe and survive. Breathing is a part of respiration in which living organisms inhale oxygen and exhale carbon-di-oxide.
Air has mass and occupies space. It is made up of atoms and molecules. Air can be compressed and exerts pressure. It has weight and is affected by temperature. The presence of air enables life on earth. If there’s no air, no living being can survive because of the destruction in respiration.
Air helps in various processes such as dispersal of seeds and pollination, sailing of boats and ship, in respiration, etc. Fresh air is good for our health and various processes taking out in our body such as it improves digestion, improves blood pressure, boosts immunity, purifies our lungs, gives energy and provides a better mood.
Composition of Air
Air is the mixture of following main components:
- Oxygen (The air is consist of 21% of oxygen)
- Nitrogen (78%)
- Carbon dioxide (0.05%)
- Argon (0.94%)
- Water vapour (29g/mol) along with dust particles
Important Points for the Exemplar Exercise Questions
Oxygen is very important as it helps in various processes occurring on earth. It is a life-supporting gas. There will be no existence of living creatures without the presence of oxygen in the atmosphere.
- Oxygen helps in respiration.
- It provides energy to human cells to work.
- Supports aquatic life. etc.
Harmful Elements Present in Air
The harmful elements present in the air are particulate matters, ozone, carbon monoxide, nitrogen dioxide, and sulfur dioxide. Their contamination gives invitations to many skins, lung diseases, and respiratory diseases such as etching, irritation of eyes, nose, and throat, many allergic reactions, asthma, heart problems skin cancers and birth defects.
A windmill is a structure designed to conserve wind energy and harness electricity. A windmill is used to draw water from tube wells and to run flour mills. Windmill consists of big fans that catch winds and spin the blades, a generator that helps in extracting electrical energy from mechanical energy, a set of cables that carries electricity to the transmission line, a computer system that directs the direction of the blades.
NCERT Exemplar Class 6 Science Chapter 15 Exercise-Discussion
- The Exemplar Chapter 15 Air Around Us exercise questions cover all the conceptual as well as practical phenomenon explained in the chapter ‘Air Around Us’.
- The NCERT Exemplar questions should be thoroughly practised to achieve a good score in the CBSE exam
- The Exemplar questions are mostly subjective in nature in this chapter that will help learn your answers and understand concepts such as the composition of air, atmosphere, etc.
- It is very important that you go through these exercise solutions from the exam perspective as well.
- We provide in-depth analysis along with the topic wise NCERT Solutions & NCERT Exemplar which help you to perform well in your academics.
- Our subject matter experts have prepared solutions with practical examples which makes it easy for you to understand the solution better
- We have covered all the questions in the exercises mentioned in Chapter 15, which means you don’t need to look for other options to get the complete solutions
We at Instasolv, provide conceptual learning rather than rote learning to open up new doors of learning and to enhance your curiosity. Therefore, you will excel in studies with our NCERT Science Class 6 Exemplar Solutions.