Homogeneous mixtures have just one phase - for example a mixture of methanol and water just look like one clear liquid.
Heterogeneous mixtures have more than one phase - for example a mixture of the insoluble salt barium sulphate and water; the salt is a white solid at the bottom of the flask.
Homogeneous mixtures have one visible phase (or part.) an example would be apple juice. Heterogeneous mixtures have two or more phases. An example would be a pizza because you can see all parts
