Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
6.2
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
5648
Points per Word
0.000177
Page Count
48
Points per Page
0.020833
Description
This introduction to organisms discusses how bacteria break down food in the body, the difference between good and bad bacteria, and how a virus invades a host cell.