Give instances for water undergoing a physical change and a chemical change.

State one instance where water undergoes a physical change and one in which it undergoes a chemical change.

Give reason:

(a)Freezing of water to ice and evaporation of water are physical changes.

(b)Burning of a candle is both a physical and a chemical change.

(c)Burning of paper is a chemical change.

(d)Cutting of a cloth piece is a physical change, though it cannot be reversed.