Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
8.1
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
3655
Points per Word
0.000274
Page Count
32
Points per Page
0.03125
Description
Discusses the origin, discovery, special characteristics, and use of nitrogen in such products as explosives and fertilizers.