Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
6.4
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
6500
Points per Word
0.000154
Page Count
48
Points per Page
0.020833
Series
American Moments
Description
This book examines supersonic travel, including the history of aircraft before the sound barrier was broken, and how that event changed aircraft and air travel.