Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
3.7
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
1729
Points per Word
0.000289
Page Count
32
Points per Page
0.015625
Description
This book presents information about the immune system, discussing bacteria and viruses, how the body fights infection, and tips to stay healthy.