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Tidy and sort

This series of activities provides opportunities to investigate a variety of ‘mixtures’ and separate them based on the properties of the materials within them. The activities are put in context using a storybook, in which two sisters are presented with tubs of mixed objects to sort out.

In the first activity the children tackle the problem of sorting marbles from Lego bricks, in which they are encouraged to use the rolling property of the marbles. Other mixtures they are asked to sort include paper-clips and stamps, sand and dried rice, and ice and plastic cutlery. In the final activity, the children are presented with a sample of muddy water to ‘clean’. They are encouraged to make use of the problem-solving techniques they have learned in the previous activities.

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