Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
7.1
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
7800
Points per Word
0.000128
Page Count
48
Points per Page
0.020833
Series
Our Bodies (Raintree)
Description
An explanation of how the body's circulatory and respiratory systems work and how they are essential for life.