Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
6.2
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
3523
Points per Word
0.000284
Page Count
32
Points per Page
0.03125
Description
This introduction to igneous rocks explains what they are, how they form, how they are used, and the different types.