Question

5. Fill in the blanks :-
a) Water is the only substance that expands on......... ​

Answer 1

Answer:

Freezing

Explanation:

water is the only substance that expands on freezing

Answer 2

Cooling

But actually this is not a complete sentence. Water expands anomalously and when cooled in the temperature range between 4℃ and 0℃, it expands and when heated in the same temperature range, it contracts. Above 4℃, it expands like any other liquid when heated. Till 4℃ if cooled, it contracts similar to any other substance.

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