Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
7.8
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
4572
Points per Word
0.000219
Page Count
72
Points per Page
0.013889
Series
Eyewitness Books
Description
Discover the space that surrounds our world how astronauts get there and what they find.