Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
7.9
Points
2.0
Fiction/Nonfiction
Nonfiction
Word Count
10951
Points per Word
0.000183
Page Count
112
Points per Page
0.017857
Description
Polish astronomer Nicolaus Copernicus observed the movement of the planets and decided Earth was not the center of the universe. He believed the planets revolved around the sun. Copernicus's ideas challenged centuries-old concepts and the Church.