Question

classify the following change in physical and chemical 1) Burning of crackes. 2) Stretching of spring.
​

Answer 1

Answer:

a) Photosynthesis

(b) Dissolving sugar in water

(c) Burning of coal

(d) Melting of wax

(e) Beating aluminium to make aluminium foil

(f ) Digestion of food

Answer 2

Answer:

1) burning of cracker - chemical change

2) streching of spring - physical change