Recently, the primary 5 students have been studying about the digestive system of our body. To understand it more thoroughly, they conducted an activity that depicts the process of digestion.


The class was divided into groups of 4 or 5 and they brought the materials needed for this experiment. The materials were:

  • Bread or biscuits
  • Scissors
  • Zip lock bag
  • ½ cup of water
  • ½ cup of coca-cola
  • Deep aluminium dish
  • 2 Plastic cups (cut the bottom part of one)
  • Paper cup (cut a hole at the bottom)
  • Paper towels
  • ½ pair of tights
  • A pair of gloves


The students started the activity by cutting the bread with the scissors or breaking the biscuits into pieces. The next step was to put the pieces into the zip lock bag. Then, they poured some water into the bag and close it. They started mashing the mixture in the bag until they got a paste like texture.


The students were enjoying this part but some of them are a bit disgusted of the appearance of the mixture.

After that, they added some coke into the mixture and started mashing it again. Next, they poured the mixture into the tights using the plastic cup as a funnel.


Since this part was messy, they wear the gloves and squeeze the juices into the deep aluminium dish.


When the juices are all in the aluminium dish, they dabbed the tights with paper towels to dry. Next, they squeezed out the solid parts into the paper cup and pushed the solid parts with the other plastic cup into the deep aluminium dish.


There were mixed reactions from them. Some were laughing and some were disgusted. Nevertheless, everyone enjoyed the short experiment.



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