Question

Question 16

Classify the following processes into physical or chemical changes:

(i) Beating of aluminium metal to make aluminium foil.
(ii) Digestion of food.
(iii) Cutting of a log of wood into pieces.
(iv) Burning of crackers.

Answer 1

Physical changes are beating of aluminium metal to make aluminium foil and cutting of a log of wood into pieces.
Chemical changes are digestion of food and burning of crackers.