“Digestion begins in the mouth”. PROVE IT! Let your students explore the magic of saliva and its enzyme amylase. A cracker or two, a drop of iodine, glucose test strips and a mouthful of spit will surely excite your students as they witness the changing of starch into sugar. Ok, it’s a little gross; all that chewing and spitting. The kids will make terrible grossed out sounds. But they will love the experiment. The lab is written in Scientific Method style with students writing a hypothesis, recording their observations and data, and finally producing a well written conclusion. This product works well for demonstrating and practicing Scientific Method in coordination with biology/digestive system units. Easily set up and cleaned up…inexpensive…easy for students to follow…highly educational….intensely fun for all!