Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
7.9
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
5345
Points per Word
0.000187
Page Count
72
Points per Page
0.013889
Series
Eyewitness Books
Description
This book traces the history and development of aircraft from the hot-air balloons to jetliners.