Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
4.8
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
1252
Points per Word
0.000399
Page Count
32
Points per Page
0.015625
Description
This book walks readers through the history of vaccines, how they work and impact our lives, and what we may expect in the future.