Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
7.7
Points
2.0
Fiction/Nonfiction
Nonfiction
Word Count
10965
Points per Word
0.000182
Page Count
48
Points per Page
0.041667
Description
This book describes the various layers beneath Earth's surface, plate tectonics, what causes earthquakes and volcanic eruptions, and how Earth's surface has changed.