# NCERT Solutions for Class 6 Science Chapter 6 Changes around us

Aug 7, 2020

## NCERT Solutions for Class 6 Science Chapter 6 imparts knowledge on the topics involved in Changes around us

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School Connect Online provided NCERT Solution will help students get a comprehensive understanding of the concepts. Studying this chapter will help you in scoring good marks in your class 6 also important for the preparation of Olympiads.

## NCERT Solutions for Class 6 Science Chapter 6 Changes around us

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

Ans :

Yes, it can be reversed by unfolding the dress.

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

Ans :

No, this change (breaking of toy) 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.

Ans :

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

Ans :

No, we cannot get a fresh drawing sheet once a picture is drawn on it with paint/ oil or water. This change can be reversed if a pencil is used to draw the picture. If pen or colors 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.

Ans :

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?

Ans :

No, the change in POP cannot be reversed since it is a chemical change.

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?

Ans : No, the change cannot be reversed, these are irreversible chemical changes.

## CBSE Notes for Class 6 Science Free Download for All Chapters

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