Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
3.8
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
1355
Points per Word
0.000369
Page Count
30
Points per Page
0.016667
Description
This book describes the appearance and development of life on our planet, from tiny sea creatures through dinosaurs and the first mammals to the arrival and dominance of humans.