Question

why does ice float on water. ice is a solid so it should be denser and sink in water.​

Answer 1

Ice floats on water because it is less dense than water. Density is defined as mass per unit volume of a substance. By saying that ice is less dense than water, we mean that a sample of ice will take up more space than a sample of water that has the same mass.

Answer 2

Ice is like no other solids. While other materials become closer to become solid, water forms a hexagon chain. This makes ice less dense than water, so ice floats on the water.