Identify the Chemical changes that you would have come across in your daily life
Rusting of iron
Combustion of wood
In a chemical change, the chemical properties of the substance change and new products are formed. Here, in rusting of iron and in the combustion of wood, the chemical properties are being changed and become a new substance. So those are chemical changes. In the breaking of glass and in the melting of an ice cube, just the physical properties are being changed, not the chemical composition.