homogeneous and heterogeneous are words to describe mixtures.
Mixtures are how the particles (compounds, atoms ions bulk components) are mixed together. It is the degree of uniformity when mixed together.
A heterogeneous mixture is a mixture where the components of the mixture are not uniform or have localized regions with different properties
their difference is quite visible.
1. homogenous mixtures are singly looking while heterogenous are coarse-like
2. you cannot identify the single somponents in a homogenous mixture while in heterogenous you can see the species being mixed
3. Homogenous examples are : cofee + sugar + milk in water ; water and ethanol, copper + tin = bronze;
Heterogenous exaxamples are: pellets for chicken feeds, oil and water; sand and water.
hope this helps