Changes Around Us: Physical and Chemical — Science STD 7 — Question
Gujarat BoardEnglish MediumSTD 7ScienceChanges Around Us: Physical and Chemical2 Marks
Question
Most of the physical changes are reversible. Give some examples with reasons.
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Answer
Melting of ice into water is a reversible physical change because water can be frozen back into ice. Inflating and deflating a balloon is also reversible because no new substance is formed.
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