Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
8.0
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
6301
Points per Word
0.000159
Page Count
48
Points per Page
0.020833
Series
Headline Science
Description
This introduction to satellites discusses the science behind these orbiting eyes, how they have helped us study the heavens, survey Earth, stay in touch, and protect our homelands.