Question

Classify the following into physical and chemical changes.
a. Melting of ice.
b. Rising hot air over a radiator.
c. Rusting of iron.
d. Mixing sand with sugar.
e. Digestion.
f. Milk turns to curd.
g. Dissolution of salt in water.

Answer 1

Answer:

a physical

b physical

c chemical

d physical

e chemical

f chemical

g chemical

Answer 2

Answer:

a. physical

b.physical

c.chemical

d physical

e.chemical

f.chemical

g chemical

hope it will help you