Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
7.6
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
7197
Points per Word
0.000139
Page Count
63
Points per Page
0.015873
Series
First Book
Description
Explores the history of the chemical element oxygen and explains its chemistry, how it works in the body, and its importance in our lives.