Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
4.9
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
2249
Points per Word
0.000222
Description
Caves are some of the least explored places on the planet. They are everywhere - underground, in cliffs and rock faces and under vast, icy glaciers. Explore how caves form, what special creatures live in them and how people use and enjoy them.