As I was not there on the first day of the lab I can only talk about the second day when I was present for the lab.  We had four test tubes labled from A-D.  On the second day for the egg white appearance test tube A  through C had no reaction but test tube D started to disintegrate.  For litmus color test tubes A and B had no reaction, while test tube C and made the paper turn pink and test tube D made the paper wet.  This lab shows how the digestion system in our stomach works.  The digestive system is very slow.  This lab showed the digestion system because our digestive system has enzymes and acids and it braks down food.