FUN SCIENCE LESSON ALERT!
On Friday afternoon, Year 4 recreated a model of the digestive system.
The children chewed up their Weetabix, banana and biscuit, crushing it up like the mouth would do. They learnt that the saliva helps coat the food in the mouth, making it easier to swallow.
The mushy food mixture was then transferred into a sandwich bag (this was our stomach). They added orange juice, which represented the stomach acid, and this helped break down the food even further. After some more squishing, the food became a consistency similar to liquid. Then, our science activity got even more messy … we transferred this mixture into a pair of tights and squeezed out all the juice. This showed children what happens in the small intestine as this is where all the good and useful nutrients get absorbed into the bodies’ bloodstream. What is left is the waste that our body doesn’t need – and that is what comes out when we go to the toilet! Yuck!