As part of our science topic looking at human digestion, Year 4 conducted an investigation into food’s journey through the body this afternoon.
To do this, we made a delicious chocolate spread and banana sandwich…
We used knifes to represent our teeth, tearing and ripping food apart. We added some splashes of water to show the job saliva does in helping to break down food in our mouth.
After this, the food went to the stomach (a sandwich bag in our investigation) where we added vinegar (to show the stomach acid). After much contracting of our stomach muscles, the ‘waste’ product was ready and we squeezed it out of the ‘body’. We learned that the waste of the body is called excrement.
Our delicious sandwich did not look so delicious by the end! Take a look below: