Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
5.4
Points
3.0
Fiction/Nonfiction
Nonfiction
Word Count
21109
Points per Word
0.000142
Page Count
128
Points per Page
0.023438
Description
This is a biography of the ingenious American whose inventions include the electric light bulb, the phonograph, and other useful items.