Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
6.9
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
4501
Points per Word
0.000222
Page Count
32
Points per Page
0.03125
Series
Top Ten; PowerKids Press
Description
This book profiles ten of history's most significant inventions, including the printing press, steam train, camera, telephone, car, radio, airplane, television, microchip, and World Wide Web, and discusses their effects on the world.