Question

A lot of changes happen around us daily, doesn't it? These changes can be classified into physical changes and chemical changes. Physical Changes are temporary changes. Chemical changes are permanent changes. In a physical change, no new substance is formed. But in a chemical change new substances are formed Certain changes are given below. • Classify and tabulate them into physical changes and chemical changes. Wood is cut into small pieces Melting of wax Burning of firewood Water turns into water vapour Sparklers emit light Physical Change Chemical Change​

Answer 1

Answer:

wood is cut into pieces is a physical change but irreversible.

melting of wax is a physical change.

burning of firewood is a chemical change.

water turns into water vapour is a physical change.

sparklers emit light is a chemical change.