Ice floats on water because

water expands when it freezes, so ice is less dense than liquid waterCorrect answerYour answerice is denser than liquid waterCorrect answerYour answerair bubbles are always trapped inside iceCorrect answerYour answerice has a greater mass than the same volume of waterCorrect answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer A

Correct answer: A

Unlike most substances, water takes up more space as a solid: its molecules lock into an open pattern.
The same mass in a larger volume means a lower density, about 0.92 g/cm³ against 1 g/cm³, so ice floats.

Worth noting

This is why a lake freezes from the top down and fish survive in the water underneath.

Concept: The anomalous expansion of water
Typical timeTypical: 60 s
Your timeYours: —

The rule this testsMatter and its states

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Ice floats on water because

Explanation