Class 6 Science Chapter 6 Changes Around Us
NCERT Solution for class 6 Science Chapter 6 Changes Around Us, (English) exam are Students are taught thru NCERT books in some of state board and CBSE Schools. As the chapter involves an end, there is an exercise provided to assist students prepare for evaluation. Students need to clear up those exercises very well because the questions withinside the very last asked from those.
Sometimes, students get stuck withinside the exercises and are not able to clear up all of the questions. To assist students, solve all of the questions and maintain their studies without a doubt, we have provided step by step NCERT Solutions for the students for all classes. These answers will similarly help students in scoring better marks with the assist of properly illustrated solutions as a way to similarly assist the students and aswering the questions right.
NCERT Solution for class 6 Science Chapter 6 Changes Around Us
Class 6 Science Chapter 6 Changes Around Us
Exercise Questions
Page number – 51
- 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.
- 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
- Some changes are listed in the following table. For each change, write in the blank column, whether the change can be reversed or not.
| Sl 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 |
Solution :
| Sl 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 |
- 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.
- 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
- 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
- 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.
