Reading Metrics
Grade Level
Upper Grades (UG 9-12)
Book Level
8.7
Points
4.0
Fiction/Nonfiction
Nonfiction
Word Count
19556
Points per Word
0.000205
Page Count
144
Points per Page
0.027778
Series
Innovators (Oliver Press)
Description
This book discusses the history and people of aviation from the Montgolfier Brothers and the hot air balloon to Igor Sikorsky and the helicopter.