NCERT Solutions | Class 6 Science Chapter 6 | Changes Around us

CBSE Solutions | Science Class 6

Check the below NCERT Solutions for Class 6 Science Chapter 6 Changes Around us Pdf free download. NCERT Solutions Class 6 Science were prepared based on the latest exam pattern. We have Provided Changes Around us Class 6 Science NCERT Solutions to help students understand the concept very well.

NCERT | Class 6 Science

NCERT Solutions Class 6 Science
Book:	National Council of Educational Research and Training (NCERT)
Board:	Central Board of Secondary Education (CBSE)
Class:	6th
Subject:	Science
Chapter:	6
Chapters Name:	Changes Around us
Medium:	English

Changes Around us | Class 6 Science | NCERT Books Solutions

You can refer to MCQ Questions for Class 6 Science Chapter 6 Changes Around us to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

NCERT TEXTBOOK EXERCISES

class 6 science Chapter 6, Question 1.

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

ncert class 6 science Chapter 6 question answer, Answer :

Yes, this change can be reversed.

NCERT Class 6 Science book, Question 2.

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

cbse science class 6 solutions, Answer :

No. This change cannot be reversed. Breaking a toy is an irreversible change.

NCERT Class 6 Science book PDF, Question 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.

S.No.	Change	Can be reversed (Yes/No)
1.	The sawing of a piece of wood
2.	The melting of ice candy
3.	Dissolving sugar in water
4.	The cooking of food
5.	The ripening of a mango
6.	Souring of milk

ncert class 6 science Chapter 6 question answer, Answer :

S.No.	Change	Can be reversed (Yes/No)
1.	The sawing of a piece of wood	No
2.	The melting of ice candy	Yes
3.	Dissolving sugar in water	Yes
4.	The cooking of food	No
5.	The ripening of a mango	No
6.	Souring of milk	No

ncert class 6 science Chapter 6, Question 4.

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

cbse science class 6 solutions, Answer :

No. We cannot reverse this change. Because we cannot get a fresh drawing sheet once a picture is drawn on it. But if the pencil is used to draw the picture, we can reverse the change.

ncert class 6 science Chapter 6 notes, Question 5.

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

ncert class 6 science Chapter 6 question answer, Answer :

One way we can group changes is to see if they can be reversed or not.

Changes that can be reversed: In such changes, we can return back to the original position if the cause of change is withdrawn; for example,
- heating of milk,
- drying of clothes,
- knitting a sweater,
- stretching a rubber band,
- melting of ice, etc.
Changes that cannot be reversed: The changes in which we cannot go back to the original position, even if we withdraw the cause of change; for example,
- boiling of egg,
- making curd from milk,
- making flour from grain,
- the flowering of a bud,
- producing biogas from cow dung, etc.

NCERT Science book Class 6 Solutions PDF free download, Question 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?

cbse science class 6 solutions, Answer :

No, it’s not a reversible change.

ncert science class 6 book, Question 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?

ncert class 6 science Chapter 6 question answer, Answer :

No, it’s not a reversible change.