Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
4.8
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
1465
Points per Word
0.000341
Description
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!