AR Book Level
4.8
AR Points
0.5
Word Count
1,465
Interest Level
Middle Grades (MG 4-8)
Genre
Nonfiction
AR Quiz #
309028 EN
About this book
For centuries peope have explored rocks. Gemstones, gold, coal and oil are all found inside rocks. Rocks hold secrets about Earth's past. We use rocks every day in our cities and in our homes. We even eat them!