|Class 7 Chemistry Physical and Chemical Changes||Physical change|
Physical changes refer to the changes in the physical properties of the substances such as shape, size, colour and state. These changes are reversible in nature. In a physical change no new substance is formed.
Tearing a piece of paper changes its shape and size.
Similarly kneading of flour to dough changes its state.
Melting of ice is also a physical change where the matter is changing its state from solid to liquid.
Rolling of chapati/roti