Using filtration and crystallisation . . .
Separating a mixture of a solid and a liquid, and getting a pure sample of solid from the mixture.
Separating immiscible liquids . . .
A quick look at a simple bit of apparatus to separate two liquids which don't dissolve in each other.
Simple distillation . . .
Producing a pure liquid from a solution of a solid in a liquid.
Fractional distillation . . .
Separating a mixture of liquids into their individual components.
Paper chromatography . . .
Using paper chromatography as a way of identifying the components of small amounts of some mixtures.