NCERT Solutions for Class 6 Science Chapter 6 - Changes Around Us.
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NCERT Solutions for Class 6th Science Chapter 6 Changes Around Us.
Here we have provided Class 6 Science Chapter 6 - Changes Around Us NCERT Solutions which includes Class 6 Science Chapter 6 - Changes Around Us NCERT Back Exercise Questions and their Solutions. These Class 6 Science Chapter 6 NCERT Solutions are completely based on NCERT Book for Class 6 Science Chapter 6 - Changes Around Us. These NCERT Solutions contains detailed explanation of 6th class science Chapter 6 - Changes Around Us. I suggest you to go through these NCERT Solutions to strengthen you understanding about this Chapter of Class 6 Science Changes Around Us.
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# Class 6 Science Chapter 6 NCERT Explanation.
# Class 6 Science Chapter 6 Explanation.
# Class 6 Science Chapter 6 Important Questions.
NCERT solutions for class 6 science Chapter 6 - Changes Around Us.
NCERT Solutions for Class 6 Science Chapter 6 - Q1.
Q1. To walk through a waterlogged area, you usually shorten the length of your dress by folding it. Can this change be reversed?
Ans. Yes, The length of the dress can again be increased by unfolding it. Hence, this change can be reversed.
NCERT Solutions for Class 6 Science Chapter 6 - Q2.
Q2. You accidentally drop your favourite toy and break it. This is a change you did not want. Can this change be reversed?
Ans. No. This change cannot be reversed as we cannot joint the broken parts of the toy as earlier.
NCERT Solutions for Class 6 Science Chapter 6 - Q3.
Q3. Some changes are listed in the following table. For each change, write in the blank column
whether the change can be reversed or not.
Answer :
NCERT Solutions for Class 6 Science Chapter 6 - Q4.
Q4. A drawing sheet changes when you draw a picture on it. Can you reverse this change?
Ans. We can reverse this change if the picture is made by pencil on drawing sheet. We can't reverse this change if the picture is made by pen, oil colour or sketch pen.
NCERT Solutions for Class 6 Science Chapter 6 - Q5.
Q5. Give example to explain the difference between changes that can or cannot be reversed.
Ans. To explain the differences between changes that can or cannot be reversed, some examples are given below -
(a) If we inflate a balloon, the size and shape of the balloon undergoes a change. However, the original size and shape of the balloon can be obtained back by allowing the air to escape from the balloon. This means that the change that occurs by inflating a balloon can be reversed. But, if the balloon bursts after being over inflated, then its original size and shape cannot be obtained back. Thus, in this case, the change cannot be reversed.
(b) If we fold a piece of paper, then the shape and size of the paper undergoes a change. In this case, the original shape and size of the original paper can be obtained back. Thus, this change can be reversed. However, if we cut the piece of paper, the change in the shape and size of the paper cannot be reversed.
NCERT Solutions for Class 6 Science Chapter 6 - Q6.
Q6. A thick coating of paste of Plaster of Paris is applied over the bandage on a fractured bone. It becomes hard on drying to keep the fractured bone immobilized. Can the change in POP be reversed?
Ans. No, the change in plaster of Paris cannot be reversed as it became hard on drying and new product is formed.
NCERT Solutions for Class 6 Science Chapter 6 - Q7.
Q7. A bag of cement lying in the open gets wet due to rain during the night. The next day, the sun shines brightly. Do you think the changes, which have occurred in the cement, could be reversed?
Ans. In this case, the changes cannot be reversed. This is because the cement that hardens up after getting wet cannot be obtained back. It is an irreversible chemical change.
NCERT Solutions for Class 6 Science Chapter 6.
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