Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
6.9
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
3421
Points per Word
0.000292
Page Count
32
Points per Page
0.03125
Series
Human Body (Lightbox)
Description
This book explores the characteristics and interactions of the respiratory system, its makeup, and importance.