Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
7.5
Points
3.0
Fiction/Nonfiction
Nonfiction
Word Count
19232
Points per Word
0.000156
Page Count
96
Points per Page
0.03125
Description
This book tells the stories behind some of the world's greatest inventions, provides biographical notes on the inventors, and discusses the effect of each invention on society.