Most of the matter in our surroundings exists as mixtures of two or more components. Examples: Milk, Soil, Sea water. etc. A mixture shows the properties of its constituent elements. The components of a mixture can be separated by physical methods like handpicking, filtration and so on. Sometimes special techniques have to be used for the separation of the components of a mixture.
This video explains how to separate the components of a mixture of ammonium chloride, salt and sand.