Which of the following is NOT a physical change?

Question

A change in the size of matter

A change in the shape of matter

A change in the chemical make up of matter

A change in the state of matter

Answer 1

The option that is NOT a physical change is:

A change in the chemical make up of matter.

Physical changes involve alterations in size, shape, or state but do not affect the chemical composition of the substance. In contrast, a change in chemical make up involves a chemical reaction that alters the substance at the molecular level.