Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
7.9
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
6975
Points per Word
0.000143
Page Count
64
Points per Page
0.015625
Series
Eyewitness Books
Description
Discusses the evolution, structure, and function of the human and animal skeletal systems. An Eyewitness book.