Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
5.8
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
2923
Points per Word
0.000171
Page Count
32
Points per Page
0.015625
Series
I Wonder Why
Description
The 'I Wonder Why' series answers demanding questions in a child-friendly and informative style. This book is packed with facts about prehistory from "When did life on Earth begin?" to "What were the Ice Ages?"