Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
8.1
Points
3.0
Fiction/Nonfiction
Nonfiction
Word Count
15023
Points per Word
0.0002
Page Count
112
Points per Page
0.026786
Description
This book explores the mysteries of rocks that travel vast distances through space, sometimes passing through Earth's atmosphere and sometimes landing on the surface. The coauthor is Kit Moser.