what is physical change

A physical change is one which involves changes in the physical properties of a substance such as 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. For example, breaking of glass, melting of ice, etc. 

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physical change can be defined as the change in which no new substance is formed i.e the chemical composition of the substance don not change.eg ice, it is a solid form of water which can be changed into liquid when kept at a room temperature and again can be freezed to form ice. therefore,melting of ice is a physical change and all physical changes are reversible changes whereas burning of paper is a chemical change as paper when burnt and can not be regained again

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