Class 6 Science Chapter 6 Changes Around Us answer to each chapter is provided in the list so that you can easily browse throughout different chapter Assam Board As Per New Syllabus Class 6 Science Chapter 6 Changes Around Us and select needs one.
SEBA Class 6 Science Chapter 6 Changes Around Us
Also, you can read the SCERT book online in these sections Solutions by Expert Teachers as per SCERT (CBSE) Book guidelines. These solutions are part of SCERT All Subject Solutions. Here we have given Assam Class 6 Science Solutions for All Subject, You can practice these here.
Changes Around Us
Chapter: 6
| Exercise |
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 favourite toy and broke it. This is a change you did not want. Can this change be reversed?
Ans: 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.
| 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 |
Ans:
| 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 |
(4) A drawing sheet changes when you draw a picture on it. Can you reverse this change?
Ans: No, 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 are:
(i) Opening and closing the door.
(ii) Filling glasses with water.
Changes that cannot be reversed are:
(i) Making curd from milk.
(ii) Growth of plants and animals.
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 immobilised. 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.
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