Question
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
- Physical change → Breaking down of larger food particles into smaller particles
- Chemical change → Digestion of food
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