Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
5.5
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
4215
Points per Word
0.000237
Page Count
48
Points per Page
0.020833
Description
This book explains how many of the living things on Earth are yet to be found and described and looks at biodiversity and what our world might look like in years.