Digestion

In Autumn term 2022 Years 4 and 5 learned about digestion in class and did a practical experiment to see how the digestive system worked!

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We put cereal and banana into our ‘mouth’ (bowl)

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We chopped it up with out ‘teeth’ (cutlery)

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Then we added ‘saliva’ (clear liquid)

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We moved it to the oesophagus (piping bag)

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We squeezed to emulate the oesophagus muscle squeezing into the ‘stomach’ (sandwich bag)

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Then we added ‘stomach acid’ (green liquid)

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When we had churned it up to a state where it would have moved into the small intestine, we added ‘bile’ (red liquid) from the pancreas

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We poured the contents into the ‘intestines’ (stocking)

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We saw how the liquid came out of the sides in the same way as nutrients going in to the bloodstream. We tried squeezing it to see how more liquid would come out representing water reabsorbed into the body, and understood that what was left was the faeces.