Reading Metrics
Grade Level
Lower Grades (LG K-3)
Book Level
2.8
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
344
Points per Word
0.001453
Page Count
32
Points per Page
0.015625
Series
Rookie Read-About Science
Description
Discusses the size, shape, composition, origin, and other aspects of different kinds of rocks.