(a) What is a physical change? Give two examples of physical changes.(b) What is a chemical change? Give two examples of chemical changes.

(a) Physical change: Physical change is a change in which no new substances are formed. These are temporary changes, which are easily reversible. The substance involved in a physical change does not lose its identity.
  1. Water, if boiled, can be cooled and condensed.
  2. Mixing iron filings with sand is a physical change because they can be separated by a magnet.

(b) Chemical change: Chemical changes occur when a substance combines with another to form a new substance. The process is called chemical reactions and, in general, is not reversible except by further chemical reactions.
  1. Rusting of iron
  2. Burning of paper


Simply Easy Learning

Updated on: 10-Oct-2022


Kickstart Your Career

Get certified by completing the course

Get Started