Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
8.7
Points
3.0
Fiction/Nonfiction
Nonfiction
Word Count
15842
Points per Word
0.000189
Page Count
112
Points per Page
0.026786
Description
A biography of the English naturalist who, after collecting plants and animals from around the world, came up with the theory of evolution by natural selection.