Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
8.4
Points
2.0
Fiction/Nonfiction
Nonfiction
Word Count
8507
Points per Word
0.000235
Page Count
64
Points per Page
0.03125
Description
This book provides information about Earth, the only inhabited planet in the Solar System, looking at its layers and its atmosphere, discusses what has been learned about the moon and its effect on Earth, and considers the future of space exploration.