Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
4.9
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
529
Points per Word
0.000945
Page Count
31
Points per Page
0.016129
Series
Wonderwise (Grolier)
Description
Two children explore the progressively deeper layers of the earth. The coauthor is Brita Granström.