Question

Liquids generally have lower density as compare to solids. But you must have observed that ice floats on water. Find out why.?

Answer 1

The mass per unit volume of a substance is called density ( density = mass/volume ). as the volume of a substance increase ,its density decrease .though ice is a solid , it has large number of empty space between its particles . these spaces are large as compared to the space present between the particles of water .Thus , the volume of ice is greater than that of water .Hence ,the density of ice is less than that of water .  A substance with lower density with lower density than water can float on water . Therefore ice float on water . 

Answer 2

$\large\red{\textbf{\underline{\underline{Here\:is\:your\:Answer :- }}}}$

Density of ice is less than the density of water. The low density of ice can be attributed to the small pores it has which allows it to trap air hence ice floats on water.

Hope it Helps !!