NCERT Solutions for Class 6 Science Chapter 6 Changes Around us

NCERT Solutions for Class 6 Science Chapter 6 Changes Around us are prepared by subject experts at CoolGyan’S. These NCERT Solutions have answers to a variety of questions, which will help you gain knowledge on the types of questions that can be asked on the topic.

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This NCERT Solutions Class 6 Science not only supports you in your exam preparation but also aids in clearing all your doubts, which is essential from the standpoint of your future studies. The solutions are provided here in PDF format for easy access and download.

This Chapter sheds light on reversible and irreversible changes around us, along with the change that may occur by heating a substance or by mixing it with some other. The Chapter has some real-life examples and demonstrations, which will make your study interesting and easy.

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Exercise Questions

1. To walk through a waterlogged area, you usually shorten the length of your dress by folding it. Can this change be reversed?

Solution:

Yes, the process can be reversed.

2. You accidentally dropped your favorite toy and broke it. This is a change you did not want. Can this change be reversed?

Solution:

No, this change cannot be reversed

3. Some changes are listed in the following table. For each change, write in the blank column, whether the change can be reversed or not.

Solution :

4. A drawing sheet changes when you draw a picture on it. Can you reverse this change?

Solution:

This change can be reversed if a pencil is used to draw the picture. If a pen, paint, oil /water colours are used to draw the picture, change cannot be reversed.

5. Give examples to explain the difference between changes that can or cannot be reversed.

Solution:

Changes that can be reversed

i) Opening and closing the door

ii) Filling glass with water

Changes that cannot be reversed

i) Conversion of milk into curd

ii) Ripening of fruit

6. A thick coating of a paste of Plaster of Paris (POP) 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?

Solution:

No, the change cannot be reversed

7. 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?

Solution: No, the change cannot be reversed

Important topics covered in NCERT Solutions for Class 6 Science Chapter 6 Changes Around us

• Can all changes always be reversed?
• Could there be other ways to bring a change?
• Some common changes
• Evaporation
• Expansion
• Contraction
• Melting

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