Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
6.0
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
3404
Points per Word
0.000294
Page Count
40
Points per Page
0.025
Series
Natural Marvels
Description
This book covers underground landforms, including Mammoth Cave in the United States, Skocjan Cave in Slovenia, and the Cave of the Crystals in Mexico.