Question

give 5 example of pysical changes and comment on their reversibility​

Answer 1

AnswEr:

Examples of physical changes :

• Melting of candle

Melted wax can be transformed again

• Melting of ice

Freezing water can help in making ice again.

• Boiling water

Compressed the vapour and you'll get water again.

• Mixing sugar in water

Water can be evaporated.

• Mixing sand and iron nails

By using magnetic separation we can separate both.

• Mixing sand and water

Water can be evaporated.

$\rule{200}2$

Physical changes are reversible. So all of them are reversible.

Answer 2

Answer:

Examples = (1) tearing of paper

(2) Breaking of glass..

(3) Cutting of wood.

(4) Melting of wax....

(5) changing of form of water..etc..