Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
8.4
Points
10.0
Fiction/Nonfiction
Nonfiction
Word Count
53202
Points per Word
0.000188
Page Count
146
Points per Page
0.068493
Series
For Kids
Description
This is a biography of the English naturalist who, after collecting plants and animals from around the world, postulated the theory of evolution by natural selection.