These downloadable videos and animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to develop ideas relating to paper chromatography as a method for separating mixtures.

Paper chromatography can be used to separate mixtures of substances not amenable to methods such as filtration and distillation. The video shows the separation of three different coloured substances in black food colouring using paper chromatography. The animation shows how the moving solvents ‘drag’ the substances apart.

These video and animation files form part of the resources in the section Chromatography in the Stuff and Substance multimedia package, which provides a series of interactive pages that can be used by teachers or students in the classroom.

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