Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
7.8
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
5921
Points per Word
0.000169
Page Count
64
Points per Page
0.015625
Description
This book tells the story of the mission that placed the Sojourner remote-control rover on Mars on July 4, 1997.