Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
7.9
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
7007
Points per Word
0.000143
Page Count
62
Points per Page
0.016129
Series
Exploring Planet Earth
Description
This book explains what rocks, minerals, and gemstones are found on the earth and how people use them.