Cutting of wood and buring of wood are two different types of changes.Identify these changes and give reasons in support of your answer.
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Answer:
In burning of wood, new substances are formed and hence it is a chemical change. While cutting the wood into small pieces no new substance is formed, thus it is a physical change. Hence, burning of wood and cutting it into small pieces are considered as two different types of changes.
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Answer:
CUTTING OF WOOD IS A PHYSICAL CHANGE
BECAUSE CUTTING WOOD GIVES AGAIN WOOD IT DOES NOT INVOLVE FORMATION OF ANU NEW SUBSTANCE NEITHER THERE IS ANY CHEMICAL CHANGE INVOLVED IN THIS PROCESS.
BURNING OF WOOD IS CHEMICAL CHANGE
BECAUSE BURNING WOOD INVOLVES CHEMICAL PROCESS THAT IS COMBUSTION REQUIRED FOR BURNING ALSO A NEW SUBSTANCE THAT IS THE ASH LEFT BEHIND. IS FORMED
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