Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
7.5
Points
5.0
Fiction/Nonfiction
Nonfiction
Word Count
27530
Points per Word
0.000182
Page Count
144
Points per Page
0.034722
Series
Don't Know Much About
Description
In this book, readers will discover who first charted the stars, why people believed that Earth was the center of the universe, and how astronauts may lead us to become pioneers of other planets