Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
8.7
Points
4.0
Fiction/Nonfiction
Nonfiction
Word Count
22268
Points per Word
0.00018
Page Count
112
Points per Page
0.035714
Description
This book discusses the microbes that live on us and in us, how scientists study them, and how they relate to health issues such as infections, obesity, allergies, and autoimmune disorders.