Inquiry Skills Students will design and conduct scientific investigations Students will communicate scientific procedures and explanations Human Anatomy and Physiology Content Students will understand how the digestive system receives, modifies, and absorbs food, and eliminates solid wastes Objectives Students grasp the concept of salivation and the chemical and mechanical digestion of the oral cavity. The tortilla is magnificently folded, beans and succulent meats pour through the folds. Freshly melted cheddar cheese covers it and an enticing aroma fill the room. Students are given a note card to write down their feelings and observations. Have students spit into the test tube and watch the reaction disappear.
Students write down observations and reasoning for the change in reaction.
Explain Go back and discuss predictions written on the note cards. How close were our predictions and our original feelings about the burrito. Introduction to amylase and chemical versus mechanical digestion. The mysterious ingredient in your spit lab is amylase, a digestive enzyme produced by salivary glands. Explain structure and organ description in the oral cavity.