hydrocholric model of the stomach p1

During the lab today we did an 'expirement/comparison/lab'.  It included test tubes that demonstrated the stomach.  One solution was a correct demonstration of the stomach(tommorrow we will find out which test tube it is) which is what made it a lab and expirement.  The lab was a sucess so far, it is a two part lab.  I think tommorrow we will be jotting down which effects had taken place over night (I already have predictions of what the results will be).  The lab was exciting, it was so fun to work with hydro-chloric acid,(its pretty high on the acidic scale and can burn you at touch).  Not to mention the lab is demonstrating how the stomach digests food.