How Our Bodies Digest Food 



405 



Some Experiments Related to Digestion. 

 Study of the Mouth Cavity. Study your own mouth, observ- 

 ing the position and number of the different kinds of teeth ; the 

 composition of the walls of the mouth, bone and muscle; the 

 position of the hard palate, the soft palate and the tonsils; the 

 shape, structure and attachment of the tongue; and the size and 

 location of the opening into the throat. 



To Determine the Uses of the Teeth, Tongue and Cheeks 

 in Eating. This knowledge should be gained from the study of 

 your own use of these organs. 



Digestion and Absorption 



To Show the Digestion of Starch. Prepare starch paste by 

 mixing a teaspoonful of starch in a gill of water. Place some 

 of the starch paste in each of two test tubes. To one of the test 



