Why We Chew – Mechanical vs Chemical Digestion

What's in this exercise

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1. Question 1

   Multiple choice

   Which of these is an example of CHEMICAL digestion?

2. Question 2

   Multiple choice

   Why do we have both mechanical AND chemical digestion?

3. Question 3

   Multiple choice

   What does saliva begin to chemically digest in the mouth?

4. Question 4

   True or false

   Chewing food thoroughly helps the rest of the digestive system work more efficiently.

5. Question 5

   Matching

   Match each process to whether it is mechanical or chemical digestion.

More exercises in this module

• Digestive Organs – Know Your System

• The Eggshell Experiment – Testing How Drinks Affect Teeth

• Science of the Experiment – Planning and Drawing Conclusions

• Nutrients and Waste – What the Body Keeps and Removes

• Tooth Decay – How Cavities Form and How to Prevent Them

• Drink Choices and Teeth – What the Experiment Tells Us