A relatively denser material float on a less dense fluid ________________________.

An object can be made to float on a fluid by changing its shape, even if the fluid is denser than the object. If the volume of the object is made larger such that the average density of the object decreases than the density of the material used and the density of the liquid, then the object can float on the liquid This approach is employed in the construction of ships where the ship is constructed n such way that it average density is less than water that makes it float on water.