| Physical change | Chemical change |
| 1. In this change, the composition of the substance does not change. No new substance is formed. | 1. In this change, the composition of the compounds change and new compounds are formed. |
| 2. In this case, physical properties such as state, colour, density, etc. are changed. | 2. In this case, physical and chemical properties are entirely changed. |
| 3. This change is temporary. | 3. This change is permanent. |
| 4. In this case, the original substance can be recovered by simple means or by merely reversing the process. | 4. In this case, the original substance cannot be recovered by easy means or by reversing the process. |
