Physical change facts for kids
A physical change is a change where no new substance is formed.
Physical changes affect the form of a substance, but not what it's made up of.
Some physical changes are reversible and their mass does not change.
Many physical changes also involve the rearrangement of atoms most noticeably in the formation of crystals.
Unlike physical changes many chemical changes are irreversible.
Physical change Facts for Kids. Kiddle Encyclopedia.