Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
7.8
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
2752
Points per Word
0.000182
Page Count
32
Points per Page
0.015625
Series
20th Century...
Description
This book is a historical account of the scientists and their breakthroughs, and the inventors and their inventions, that have shaped the modern world.