Question

give 5 example each of physical and chemical changes that take place around us in our day to day life

Answer 1

Physical change ex. Transformation of ice into water and chemical changes ex. cooking of food, ripening of fruit, milk turned into curd , digestion of food in the stomach, size reduction of naphtha balls exposed to air

Answer 2

physical changes


Changes in the Physical Properties of a Substance are known as Physical Changes. Physical Properties of a Substance include colour, size, shape, state, temperature, odour, appearance, texture and many more. In addition, Physical Changes do not lead to the formation of new substances. Physical Changes may or may not be reversible.

Examples of Physical Change

Breaking/Crushing of any Object
Expansion of Metal on HeatingDissolving Sugar or Salt (Solute) in Water (Solvent) (as a result, a solution is formed)
Solidification of Molten Metal on Cooling
Shredding Paper


chemical changes
One or more substances, at times, react with one another or substances which are readily available in the environment. This consequently leads to the formation of new substance(s). The formation of the new substance can also be accompanied by one or more of the following:

Emission of Heat (Exothermic Reaction) as a result of a Chemical Changes
Absorption of Heat (Endothermic Reaction) as a result of a Chemical Changes
Emission Light as a result of a Chemical Changes
Production of Sound as a result of a Chemical Changes
Change or emission of Odour as a result of a Chemical Changes