Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
5.6
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
3836
Points per Word
0.000261
Page Count
48
Points per Page
0.020833
Series
Engineering Wonders (Rourke)
Description
Learn about the origin of the first tunnels, the greatest tunnel builders, the evolution and advancement of tunnels that are being built today, and the complex wonders they are.