Summary
Ralphie is home sick, so the class shrinks down to explore his body and hunt for what's making him feel bad. They learn how germs cause illness and how the body fights back.
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All ages
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Teaching resources
Discussion questions
Discussion
Ralphie is home sick, so the class shrinks down to explore his body and hunt for what's making him feel bad.
- What is a germ, and how does it get inside us?
- How does your body fight off an infection?
- Why does a doctor sometimes give medicine for an illness?
Quick work-a-long
Vocabulary: germ, bacteria, white blood cell.
Try it: List three habits that keep germs from spreading and explain why each one works.

