Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
4.8
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
3305
Points per Word
0.000151
Page Count
32
Points per Page
0.015625
Series
Stone Age Science
Description
Leo teaches his cat, Pallas, about simple machines by applying his knowledge of science to their stone age world. The coauthor is Gerry Bailey.