Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
8.3
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
5081
Points per Word
0.000197
Page Count
64
Points per Page
0.015625
Series
Watts Library
Description
This book explores the tools and technologies that scientists have used through the centuries to learn and map the geography of the world.