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Is Matter Around Us Pure? — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceIs Matter Around Us Pure?2 Marks
Question
What is a physical change? Give two examples of physical changes.
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Answer

The change in which no new substance is formed is called a physical change.
Example: Melting of candle wax, mixing of iron filings and sand.

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