Cambridge Primary (1-6). Stage 6. Science. Learner's Book - Unit 1: The human body - Question 119

Match each of the body’s defences with the way it helps to protect the body from disease.

Body defence: tears; mucus; stomach acid; skin.

How it protects the body from disease:
- traps germs
- stops bacteria entering the body
- contain a chemical substance that kills some bacteria
- kills bacteria in food we have eaten