Reading Metrics
Grade Level
Lower Grades (LG K-3)
Book Level
2.7
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
281
Points per Word
0.001779
Page Count
24
Points per Page
0.020833
Series
Pebble Plus; My Silly Body
Description
Simple text and full-page photos describe the theories about why people yawn.
Quick Summary
This book tackles one of life's biggest mysteries why we yawn in a way that makes little scientists giggle with delight. The full-page photos show kids and animals catching huge yawns, while the simple explanations reveal surprising theories like brain cooling and oxygen refueling that make them see their own bodies in a whole new way. If your kid loves the curious body questions in "The Magic School Bus Inside the Human Body" or enjoys flipping through National Geographic Kids magazines, they'll be hooked on this pocket-sized mystery. Perfect for kindergarten through second-grade readers who are curious about how their bodies work.