Question

Write an activity to observe a physical change with the help of a paper or a Chalk.

Answer 1

PLEASE

PLAESE TELLFAST

Answer 2

Explanation:

A physical change is one which involves changes in the physical properties of a substance such as a state, shape, size, and colour, etc. No new substances are formed in a physical change. Also, the original substance can generally be recovered again in a physical change i.e. most physical changes are reversible, as the melting of ice only includes the change in physical properties like state, shape, etc. moreover no new chemical products is formed. Therefore, it is a physical process.