Physical and Chemical Changes

Physical Change:

A physical change is a change that is easily reversible and in which no new substance is formed .

For example:

• When ice (solid) is heated, it melts to form water (liquid).
• When the water is cooled, it solidifies back into ice .

\( \scriptsize \underset{solid}{ice} \rightarrow \underset{liquid}{water}\rightarrow \underset{solid}{ice} \)

Other Examples of Physical Changes:

1. Dissolving common salt in water.
2. Melting of ice, candle wax, or butter.
3. Freezing of liquids to solids.
4. Vaporisation of liquids (e.g.