Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
8.3
Points
2.0
Fiction/Nonfiction
Nonfiction
Word Count
8632
Points per Word
0.000232
Page Count
80
Points per Page
0.025
Description
This book discusses the invention of gunpowder and its impact on the course of history, examining the chemical makeup of the substance and looking at its military and other uses.