* Physical Change: Involves a change in the form or appearance of a substance, but not its chemical composition. The molecules of the plate remain the same, even though the plate is broken into smaller pieces.
* Chemical Change: Involves the formation of new substances with different chemical properties. The molecules of the original substances are rearranged to form new molecules.
Examples of physical changes:
* Melting ice
* Cutting paper
* Dissolving sugar in water
Examples of chemical changes:
* Burning wood
* Cooking an egg
* Rusting iron
In the case of the broken plate, the composition of the plate material (ceramic, glass, etc.) remains the same. It's just been broken into smaller pieces.