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Why does water expand

2 Answers

11 votes

Answer:

Water expands as it freezes because water molecules are very loosely bound. They are arranged in a hexagonal pattern inside of the ice. As the temperature lowers, the molecules move slower, which causes them to get closer together.

Step-by-step explanation:

User DauleDK
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Answer:

this happens when it freezes

Step-by-step explanation:

When water freezes, its molecules get arranged in a crystalline structure, thereby attaining a defined shape. This crystalline structure is less dense, and since there are gaps between individual molecules in the structure, the overall volume increases and water expands

User Lapots
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