Melting/freezing/fusion/solidification and boiling /vaporization /evaporation

Chemistry

PHYSICAL/TEMPORARY AND CHEMICAL CHANGES

PHYSICAL/TEMPORARY AND CHEMICAL CHANGES

A physical/temporary change is one which no new substance is formed and is reversible back to original.

A chemical/permanent change is one which a new substance is formed and is irreversible back to original.

The following experiments illustrates physical and chemical changes