Why Do We Yawn?
The Big Idea
Solve the mystery of the contagious yawn. Discover the latest theories on why we take these deep, involuntary breaths, from cooling down a tired brain to maintaining social connections with those around us.
Key Vocabulary & Concepts

Hands-On Observation Checklist
Teacher & Parent Discussion Starters
- Why is understanding why do we yawn? important in everyday real life?
- What variable or factor had the biggest impact when testing the simulation?
- How does this concept connect to another science topic you have learned about?
Why Do We Yawn?
Solve the mystery of the contagious yawn. Discover the latest theories on why we take these deep, involuntary breaths, from cooling down a tired brain to maintaining social connections with those around us.
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