Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
8.1
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
8074
Points per Word
0.000124
Page Count
80
Points per Page
0.0125
Description
This book describes early developments in magnification, the invention and improvement of the microscope, and the discoveries about germs, illness, and disease that the advent of the microscope made possible.