Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
4.9
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
2225
Points per Word
0.000225
Page Count
32
Points per Page
0.015625
Description
This book describes pulleys and gears and how they are used, including the type of pulleys used by mountain climbers, how gears help cars and buses work, and why weight lifters need pulleys to help them train.