Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
6.9
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
5958
Points per Word
0.000168
Page Count
62
Points per Page
0.016129
Series
First Book
Description
Describes the formation and characteristics of animal fossils, including those of trilobites, lobe-finned fishes, and dinosaurs, and explains how they give us information about the history of the earth.