Reading Metrics
Grade Level
Lower Grades (LG K-3)
Book Level
5.9
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
1332
Points per Word
0.000375
Page Count
48
Points per Page
0.010417
Series
True Book
Description
This book explains how the ozone layer protects Earth from harmful solar radiation and how ground-level ozone is a type of pollution.