Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
7.2
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
7401
Points per Word
0.000135
Description
Discover all about the major body systems involved in obtaining and digesting food for the body's nutritional needs, removal of wastes by filtering blood through the excretory system, and reproduction.