🥱 Why Do We Yawn?
You yawn when you are tired. You yawn when you are bored. But why? Scientists have studied yawning for many years, and the answer is more interesting than you think. This article explains why we yawn, why yawning spreads from person to person, and why even fish and snakes yawn.
Lesson Plan
- Fun article with vocabulary highlights
Key Vocabulary
Grammar Points
- Present simple for facts
- Past simple (basic)
- Can for ability
- Because for reasons
- When + present simple
