Effort of Digestive system

First mrs.Achana said “choose a gaffer” then the gaffer had to take the bowl and fill it with water

Then she gave large pieces of a potato and told us to mix it,but, it did not mixed then she told to take out the water and give her the chopped potato. Meanwhile she gave us grated potato’s and put water and told to mixed it finally it mixed but we had to take out the juice then we took a large strainer and we tried to take all the juice from it and that was the small intestine then she gave us a small strainer and that took all the juice out  that was the large intestine and the rest was the waste

That comes out of our body