A homogeneous mixture is the same throughout, while a heterogeneous mixture is not uniform throughout.
A heterogeneous mixture is one that consists of two or more substances and is non-uniform. The different components of the mixture can be seen, such as a mixture of sand and water.
On the other hand, a homogeneous mixture is uniform, and the different components cannot be seen, such as salt dissolved in water.
The particles in a homogeneous mixture will not separate if left undisturbed, while the particles in a heterogeneous mixture can be filtered out of the mixture.
Homogeneous mixtures can be formed through physical changes, while heterogeneous mixtures can be formed through chemical changes.
Therefore, the best comparison is that a homogeneous mixture is the same throughout, while a heterogeneous mixture is not uniform throughout.