Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
5.1
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
3002
Points per Word
0.000167
Page Count
24
Points per Page
0.020833
Description
This book introduces simple machines, including the lever, wheel and axle, pulley, inclined plane, screw, and wedge, and explores the use of simple machines and how they make work easier.