Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
3.0
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
786
Points per Word
0.000636
Page Count
32
Points per Page
0.015625
Description
After traveling millions of miles through space, roving robots gently landed on Mars and then drove across its surface. Read this book to learn how engineers accomplished these amazing feats of space exploration.