Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
6.6
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
6984
Points per Word
0.000143
Page Count
48
Points per Page
0.020833
Series
Science Discovery
Description
This introduction to machines explores the basic science concepts behind many of the tools people use every day.