The process of freezing is an example of a physical change even though water and ice have different properties, why?
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.
When ice changes to water it is an example of which process?
Some changes are given below.
(a) Freezing of water
(b) Melting of ice
(c) Boiling of water
Are these considered as physical changes? If yes, give the reason.