This worksheet asks...

It looks at the causes of infections, how these pathogens enter our body and what steps we can take to avoid infection.

In this worksheet, students will explore the question "can microorganisms be harmful?" and will look at the causes of infection.

**Key stage:** KS 3

**Curriculum topic:** Extend Your Learning

**Curriculum subtopic:** Interesting Topics from the Old Curriculum

**Difficulty level:**

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