Reading Metrics
Grade Level
Lower Grades (LG K-3)
Book Level
2.4
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
335
Points per Word
0.001493
Page Count
32
Points per Page
0.015625
Description
This book describes the microscopic life forms that live in the air, such as molds, fungi, and bacteria, and examines their positive and negative effects on the human body.