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BBC Bitesize revision aid on acids and bases and reaction with metals to form salts.

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 collection of engaging games that challenge students' knowledge and logic.

A revision video from Bitesize that recaps the pH scale, universal indicator and the relevance of this to the acidification of the oceans due to atmospheric pollution.

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 pH scale
 acids and alkalis
 acids in the environment
 metal oxides
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