Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
5.5
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
7834
Points per Word
0.000128
Page Count
108
Points per Page
0.009259
Series
What Was.../What Is...?
Description
The Age of Dinosaurs began about 250 million years ago. In the beginning, they were quite small, but over time they evolved into the varied and fascinating creatures that captivate our imaginations today. What we know about dinosaurs is evolving, too.