Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
7.9
Points
3.0
Fiction/Nonfiction
Nonfiction
Word Count
14210
Points per Word
0.000211
Page Count
128
Points per Page
0.023438
Description
This biography profiles the life of ancient Greek mathematician Eratosthenes, who used geometry to calculate the circumference of Earth.