Advertisements
Online Mock Tests
Chapters
![Samacheer Kalvi solutions for Science - Term 2 [English] Class 6 TN Board chapter 4 - Air - Shaalaa.com](/images/science-term-2-english-class-6-tn-board_6:5f2b1b2038084cf381bfa42c826a928c.jpg "Samacheer Kalvi solutions for Science - Term 2 [English] Class 6 TN Board chapter 4 - Air")
Advertisements
Solutions for Chapter 4: Air
Below listed, you can find solutions for Chapter 4 of Tamil Nadu Board of Secondary Education Samacheer Kalvi for Science - Term 2 [English] Class 6 TN Board.
Samacheer Kalvi solutions for Science - Term 2 [English] Class 6 TN Board 4 Air Evaluation [Pages 55 - 56]
Choose the appropriate answer
______ is the percentage of nitrogen in air.
78%
21%
0.03%
1%
Gas exchange takes place in plants using _____.
Stomata
Chlorophyll
Leaves
Flowers
The constituent of air that supports combustion is _____.
Nitrogen
water vapour
Oxygen
water vapour
Nitrogen is used in the food packaging industry because it _____.
provides colour to the food
provides oxygen to the food
adds proteins and minerals to the food
keeps the food fresh
_______ and ______ are the two gases, which when taken together, make up about 99 percentage of air.
- Nitrogen
- carbon-di-oxide
- Noble gases
- Oxygen
I and II
I and III
II and IV
I and IV
Fill in the blanks
______ is the active component of air.
The gas given out during photosynthesis is _____.
______ gas is given to the patients having breathing problems.
_______ can be seen moving in a beam of sunlight in a dark room.
_____ gas turns lime water milky.
True or False. If False, give the correct statement
Inhaled air contains a large amount of carbon-di-oxide.
True
False
Planting trees help in decreasing global warming.
True
False
The composition of air is always exactly the same.
True
False
Whales come up to the water surface to breathe in oxygen.
True
False
The balance of oxygen in atmosphere is maintained through photosynthesis in animals and respiration in plants.
True
False
Match the following
| 1. | Moving Air | Photosynthesis |
| 2. | Layer in which we live | Troposphere |
| 3. | Stratosphere | Wind |
| 4. | Oxygen | Ozone layer |
| 5. | carbon-di-oxide | Combustion |
Arrange the following statements in correct sequence
- Plants manufacture food by a process called photosynthesis.
- Plants require energy for their growth.
- Plants take in oxygen and release carbon dioxide just as animals.
- Plants take carbon dioxide from the atmosphere, use chlorophyll in the presence of sunlight and prepare food.
- Such oxygen is available to animals and human beings for breathing.
- During this process, oxygen is released by plants.
Analogy
Photosynthesis : _____ :: Respiration : Oxygen
Analogy
78% of air: Does not support combustion:: _____: Supports combustion
Observe the given figure carefully and answer the questions.
What will happen if we remove plants from the aquarium?
What will happen if we remove the fish from the aquarium and keep it (with green plants) in a dark place?
Give very short answer
What is atmosphere? Name the five layers of atmosphere.
How do the roots of land plants get oxygen for breathing?
What should be done if the clothes of a person catch fire accidentally? Why?
What will happen if you breathe through mouth?
Give short answer
Biscuits kept open on a plate during monsoon days lose its’ crispness. Why?
Why do traffic assistants wear a mask on duty?
Answer in detail
How do plants and animals maintain the balance of oxygen and carbon dioxide in the air?
Why is atmosphere essential for life on earth?
Question based on Higher Order Thinking Skills
Can you guess why fire extinguishers throw a stream of carbon-di-oxide while putting - off the fire?
Solutions for 4: Air
Samacheer Kalvi solutions for Science - Term 2 [English] Class 6 TN Board chapter 4 - Air
Shaalaa.com has the Tamil Nadu Board of Secondary Education Mathematics Science - Term 2 [English] Class 6 TN Board Tamil Nadu Board of Secondary Education solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. Samacheer Kalvi solutions for Mathematics Science - Term 2 [English] Class 6 TN Board Tamil Nadu Board of Secondary Education 4 (Air) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.
Further, we at Shaalaa.com provide such solutions so students can prepare for written exams. Samacheer Kalvi textbook solutions can be a core help for self-study and provide excellent self-help guidance for students.
Concepts covered in Science - Term 2 [English] Class 6 TN Board chapter 4 Air are Air Around Us, Atmosphere and Its Layers, Air is a Mixture, Composition and Components of Air, Burning and Combustion, Photosynthesis: Food-Making Process in Plants, Process of Photosynthesis, Importance of Air, Importance of Air.
Using Samacheer Kalvi Science - Term 2 [English] Class 6 TN Board solutions Air exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Samacheer Kalvi Solutions are essential questions that can be asked in the final exam. Maximum Tamil Nadu Board of Secondary Education Science - Term 2 [English] Class 6 TN Board students prefer Samacheer Kalvi Textbook Solutions to score more in exams.
Get the free view of Chapter 4, Air Science - Term 2 [English] Class 6 TN Board additional questions for Mathematics Science - Term 2 [English] Class 6 TN Board Tamil Nadu Board of Secondary Education, and you can use Shaalaa.com to keep it handy for your exam preparation.
