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Changes Around Us — CHEMISTRY STD 6 — Question

ICSE BoardEnglish MediumSTD 6CHEMISTRYChanges Around Us2 Marks
Question
Define a physical change and a chemical change. Give two examples of each.
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Answer

A physical change is a change in which no new substance is formed. It is temporary and usually reversible. Examples : Drying of wet clothes, stretching a rubber band, glowing of an electric bulb, etc. A chemical change is a permanent change in which the original substance loses its own composition and properties and forms a new substance. Examples : Cooking of food, digestion of food, rusting of iron, burning of paper, etc.

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