Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
6.2
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
6373
Points per Word
0.000157
Page Count
32
Points per Page
0.03125
Series
Know It All
Description
Text, photos, charts, and illustrations combine to explain the mysteries of space. The coauthor is Pat Jacobs.