1) What does the Ziplock/ cellophane bag represent? How about the water and scissors?
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2) What does your set of teeth do? Do your teeth perform mechanical or chemical digestion?
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3) What is the role of saliva in breaking down of food?
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4) How does the mouth, teeth, saliva, and tongue work together?
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1. What does the ziplock/cellophane bag represent? How about the water and scissors?
ziplock/cellophane= mouth
water= saliva
scissors= teeth
2. What does your set of teeth do? Do your teeth perform mechanical or chemical digestion?
It is use to chew food and it performs mechanical digestion by tearing foods to small pieces.
3. What is the role of saliva in breaking down of food?
The role of saliva include moistening food, and helping to create a food bolus, so it can be swallowed easily.
4. How does the mouth, teeth, saliva and tongue work together?
The chewing and wetting action provided by the teeth and saliva shape the food into a mass called the bolus for swallowing. The tongue aids in swallowing by moving the bolus from the mouth into the pharynx.
Explanation: