Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
5.5
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
3109
Points per Word
0.000161
Page Count
32
Points per Page
0.015625
Description
This book looks at the historical controversies that surround the theory of heliocentrism and tells the stories of the scientists who worked on the theory.