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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 which describes the structure and function of the digestive system.

Three very detailed linked pages covering enzyme action, factors that affect rate and the lock and key hypothesis.

A detailed description of the digestive system, including its parts and their functions, peristalsis, enzymes, bile and functional foods.

A single page description of peristalsis including an animation.

A detailed look at the enzymes of the digestive system, the reactions they catalyse and their products.

A detailed descrption of how blood sugar is controlled in humans. Linked pages include the symptoms of diabetes, and other examples of homeostasis.

An instructional section from the Diabetes UK webpage.

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 immune system
 blood cells
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