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A pack of lesson plans that can be downloaded, together with video clips from the BBC children's science show that are linked to each lesson. The pack has worksheets and suggested activities for KS3 and 4.

A short video clip that demonstrates the crystallization of sodium ethanoate (exothermic) and the reaction of barium hydroxide with ammonium chloride (endothermic). An explanation of the energy changes is then given.

Excellent, clearly presented revision material on compounds, mixtures and separating from BBC bitesize. There is also a good multiple choice quiz.

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 displacement reactions
 electrolysis
 rates of reaction
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