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.
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Answer 1

Answer:

Melting of wax is a physical change and burning of wax is a chemical change.In gas burner the gas come out as gas in the gas tank it is in liquid, so there physical change takes place.then burning of wax is a chemical reaction

Answer 2

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