Changes around Us
NCERT solutions for Science Changes around Us
NCERT Class 6 Science Chapter wise Solutions
- Chapter 1 – Food Where Does It Come From
- Chapter 2 – Components of Food
- Chapter 3 – Fibre to Fabric
- Chapter 4 – Sorting Materials Into Group
- Chapter 5 – Separation of Substances
- Chapter 6 – Changes Around Us
- Chapter 7 – Getting to Know Plants
- Chapter 8 – Body Movements
- Chapter 9 – The Living Organisms and Their Surroundings
- Chapter 10 – Motion and Measurement of Distances
- Chapter 11 – Light Shadows and Reflection
- Chapter 12 – Electricity and Circuits
- Chapter 13 – Fun with Magnets
- Chapter 14 – Water
- Chapter 15 – Air around Us
- Chapter 16 – Garbage In Garbage Out
NCERT Solutions for Class 6 Science Changes around Us
Class–VI
(CHAPTER-06)
CHANGES AROUND US
Question 1.walk through a waterlogged area, you usually shorten the length of your dress by folding it. Can this change be reversed?
Answer: Yes, this can be reversed.
Question 2.You accidently dropped your favorite toy and broke it. This is a change you did not want. Can this change be reversed?
Answer: No, this change cannot be reversed.
NCERT Solutions for Class 6 Science Changes around Us
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.
2. 3. 4. 5. 6. | The sawing of a piece of wood.
The melting of ice candy Dissolving sugar in water The cooking of food The ripening of mango Souring of milk |
Answer:
| S No. | Change | Can be reversed
Yes/No |
| 1.
2. 3. 4. 5. 6. | The sawing of a piece of wood.
The melting of ice candy Dissolving sugar in water The cooking of food The ripening of mango Souring of milk | No
Yes Yes No No No |
Question 4.A drawing sheet changes when you draw a picture on it. Can you reverse this change?
Answer: If the picture is drawn with a pencil, then it can be erased; hence change can be reversed. But if the picture is drawn with colours, the change cannot be reversed.
NCERT Solutions for Class 6 Science Changes around Us
Question 5.Give example to explain the difference between changes that can or cannot be reversed.
Answer: Some changes can be reversed like:
(i)Filing glass with water
(ii)Opening/ closing door
Other changes cannot be reversed, like:
(iii)Curdling of milk
(iv)Ripening of fruit.
Question 6.A thick coating of paste of Plaster of Paris 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?
Answer: No, the change in plaster of Paris cannot be reversed.
NCERT Solutions for Class 6 Science Changes around Us
Question 7.A bag of cement lying in the open gets wet due to rain during night. The next day the sun shines brightly. Do you think the change which have occurred in the cement could be reversed?
Answer: No, the changes which have occurred in the cement cannot be reversed.