Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
7.4
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
7416
Points per Word
0.000135
Page Count
32
Points per Page
0.03125
Description
This book describes the heart's and lungs' actions in supplying power and oxygen to the body and bloods' important role in the human body.