Nature & science · Age 9 · Digestion, Teeth & Excretion
Teeth and Mechanical Digestion – Chew It Right
Explain the role of teeth in mechanical digestion: cutting, tearing, and grinding food.
Module
Digestion, Teeth & Excretion
Age
Age 9
Duration
10 min
Questions
5
What's in this exercise
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Question 1
Multiple choice
What is mechanical digestion?
Question 2
Multiple choice
Why is breaking food into smaller pieces important for digestion?
Question 3
Multiple choice
Which organ carries out most of the mechanical digestion of food?
Question 4
True or false
Teeth are the only structures involved in mechanical digestion – the stomach plays no role.
Question 5
Matching
Match each mechanical action to what it does to food.
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Digestive Organs – Know Your System
The Eggshell Experiment – Testing How Drinks Affect Teeth
Why We Chew – Mechanical vs Chemical Digestion
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