Question

ice floats on water though it solid

Answer 1

Ice floats because it is less dense than water. Ice is about 9% less dense. When ice forms, it takes up about 9% more space than it did as a liquid. Thus, a 1 liter container of ice weighs less than a 1 liter container of liquid water, and the lighter material floats to the top.

Answer 2

because density of ice is greater than water