Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
3.8
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
1383
Points per Word
0.000362
Page Count
24
Points per Page
0.020833
Series
Looking at Layers
Description
Readers learn how life survives in caves' inhospitable conditions and how caves' spectacular structures form.