A homogeneous mixture has the same uniform appearance and composition throughout. Many homogeneous mixtures are commonly referred to as solutions. A heterogeneous mixture consists of visibly different substances or phases. The three phases or states of matter are gas, liquid, and solid.
A homogenous mixture has a uniform composition throughout its mass There are no visible and sharp boundaries between the various constituents of a homogeneous mixture.Ex. sugar solution is a mixture of sugar in water.
A heterogeneous mixture does not have a uniform composition throughout its mass . There are visible and sharp boundaries between the various constituents of such a mixture.Ex. a mixture of sand and common salt is heterogeneous.