Question

Q4 Differenitate the following between Physical and chemical changes

Setting of Curd-
Berning candle-
Strecting of String-
Rusting of Iron-​

Answer 1

Answer:

If the chemical composition is changing, then it is a chemical change, and if the chemical composition is remaining the same, then it is a physical change.

Growth of a plant, rusting of iron, cooking of food, digestion of food, and burning the candle are chemical changes because here is the chemical composition of the substance changes

Answer 2

Setting of curd , Burning candle, rusting of iron are chemical changes.

Stretching of String is physical change.

brainlyking88 thanks de dena