Multiple choice

Riya poured water in the glass and put some ice in it. She noticed that the ice was floating in the glass. Which of the following is the correct reason as to why ice floats on water?

  1. Surface tension of water is more than that of ice.

  2. Density of water is more than ice.

  3. Mass of ice is more than that of water.

  4. Density of ice is more than that of water.

  5. Surface tension of ice is more than that of water.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct option. Ice floats because it is about 9% less dense than liquid water. In other words, ice takes up about 9% more space than water. The heavier water displaces the lighter ice, so ice floats to the top.  

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