The Digestive System - The Stomach
Science: Year 3 & 4 National Curriculum, topic 7.2.3
The Stomach's Role in the Digestive System
The second stage of digestion happens in the stomach where food is mixed with acid.
Role of the acid
- The acid helps break down the food.
- The acid helps destroy microbes.
- E.g. bacteria.
Role of the muscles
- The stomach has many muscles surrounding it and this helps to continue churning the ‘food’.
- 'Churning' food means you move the food in your stomach.
Test yourself on The Digestive System - The Stomach
Which of these are true about digestion in the stomach?
What helps to churn food around the stomach?