Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
6.2
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
7257
Points per Word
0.000138
Page Count
48
Points per Page
0.020833
Description
This book discusses how the main job of the circulatory system is to deliver oxygen and nutrients to the body. The heart, blood vessels, and blood make up the circulatory system.