Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
7.3
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
4715
Points per Word
0.000212
Page Count
61
Points per Page
0.016393
Description
Provides information about some of the greatest inventions in various fields such as computers, electricity, medical procedures, and musical instruments.