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Question 7:Explain why burning of wood and cutting it into small piece are considered as two different types of changes.

Question 7:Explain why burning of wood and cutting it into small piece are considered as
two different types of changes.

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 8741 Points
one month ago
Answer: When we burn wood, a new substance, coal, is formed. Therefore, it is a chemical change. However, when we cut wood, only the shape and size of the wood are changed. No new substance is formed. Therefore, it is a physical change.

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