9Bio20140910modeldigestionThis week in Coordinated Science (Biology) we are approaching the end of our first unit on cells, cell processes and animal digestion. To model how our digestive system works we used every day household objects to show what happens in each region of the alimentary canal.  The students  took on the roles of the teeth  using pestle and mortar to crush food), the oesophagus (pushing food along a tube to show peristalsis), the stomach (churning food in a plastic ziplock bag), and the intestines (modelling absorption of food through woman’s tights and the absorption of water with paper towels). They enjoyed witnessing for themselves the final product of the model digestive system!

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