- Separating solid-solid mixtures
- Hand picking e.g. rice and beans
- Winnowing e.g. groundnut and its peelings
- Sieving e.g. corn flour from corn brands
- Magnetization e.g. money (coins) from shoes using a magnet
- Sublimation e.g. common salt and camphor
- Separation of solid-liquid mixtures
- Filtration e.g. water and sand, tea and water
- Centrifugation e.g. blood cell from other nutrients
- Evaporation followed by crystallization e.g. separation of common salt and water
- Separation of liquid-liquid mixture
- Simple distillation: it is used to recover a solvent from a solution. E.g. separating pure water from a mixture of sea water.
- Fractional distillation: it is used to separate miscible liquids which have different boiling points. E.g. separating kerosene and water, ethanol and water
- Using a separating funnel: this method is used to separate immiscible liquids e.g. water and oil
- Separating liquid-gas mixtures
It is simply done by allowing the gas to escape from the liquid. E.g. separating carbon-dioxide from a bottle of fanta
- Separating gas-gas mixtures
This is done by liquefaction and then by fractional distillation.