Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
6.3
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
5278
Points per Word
0.000189
Page Count
48
Points per Page
0.020833
Description
This book examines how forces and motion work in space travel. The coauthor is Richard Spilsbury.