Explain why burning of wood and cutting it into small pieces are consi

1.	Explain why burning of wood and cutting it into small pieces are considered as two different types of changes.
Answer» Burning of wood is a chemical change because in burning new substances are formed as Wood + Oxygen → Charcoal + Carbon dioxide + Heat + Light But cutting it into small pieces is physical change because no new substance is formed. We can only reduce the size of wood.

Explain why burning of wood and cutting it into small pieces are considered as two different types of changes.

Answer»

Burning of wood is a chemical change because in burning new substances are formed as

Wood + Oxygen → Charcoal + Carbon dioxide + Heat + Light

But cutting it into small pieces is physical change because no new substance is formed. We can only reduce the size of wood.