Exploring the Difference Between Physical and Chemical Changes

Understanding Physical and Chemical Changes

Physical changes involve changes in the physical properties of a substance without altering its chemical composition. These changes are usually reversible. On the other hand, chemical changes result in the formation of new substances with different chemical properties from the original material.

Examples of Physical Changes

Physical changes include changes in state (solid to liquid to gas), changes in size or shape, and changes in form. An example of a physical change is crushing a rock with a hammer.

Examples of Chemical Changes

Chemical changes involve the rearrangement of atoms to form new substances. Examples of chemical changes include burning of paper, rusting of iron, and cooking an egg.