Question 5: When a candle burns, both physical and chemical changes take place. Identify these changes. Give another example of a familiar process in which both the chemical and physical changes take place.

Answer: When a candle burns, both physical and chemical changes take place. Physical change → Melting of wax Chemical change → Burning of wax Eating of food is another example where both physical and chemical changes occur simultaneously. Physical change → Breaking down of larger food particles into smaller particles Chemical change → Digestion of food