Class 6 Chemistry Changes around us Numericals

Numericals

Question 1:- A drawing sheet changes when you draw a picture on it. Can you reverse this change?

Answer 1:-

This change can be reversed by using eraser, if a pencil is used in drawing. But if pen or paint is used for drawing, then we can reverse this change.

Question 2:- Give examples to explain the difference between changes that can or cannot be reversed?

Answer 2:-

Melting of ice, heating of milk, drying of clothes, stretching the rubber band etc.

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