Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
6.7
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
6019
Points per Word
0.000166
Page Count
64
Points per Page
0.015625
Series
Life in Extreme Environments
Description
This book defines high altitudes, where air is thinner, cooler, and drier, and indicates how plants, animals, and humans learn to survive in this extreme environment.