Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
6.0
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
5977
Points per Word
0.000167
Page Count
48
Points per Page
0.020833
Description
This book discusses how the surface of Earth is constantly moving, what causes the movements in Earth's crust, and how moving crust sets off powerful earthquakes and volcanoes.