Question

III. Match the following
Column A
1. Slow change
2. Fast change
3. Reversible change
4. Irreversible change
5. Periodic change
6. Non-periodic change
7. Desirable change
8. Undesirable change
9. Exothermic change
10. Endothermic change
Column B
(a) ploughing, a field
(b) stretching of a spring
() cooking of food
(d) bursting of a cracker
(e) formation of curd from milk
weathering of rocks
(g) evaporation of alcohol
(h) motion of a swing
) hammering of metals into sheets
0) growth of a tree
(k) rusting of iron
() formation of seeds from flowers
(m) breaking a sjass tumbler
24
Innovative Chemistry-7​

Answer 1

1. TSUNAMI
2. RUSTING OF IRON
3. MELTING

Answer 2

Explanation:

cooking of food is irreversible change . New material or substance is formed