Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
5.3
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
9630
Points per Word
0.000104
Page Count
48
Points per Page
0.020833
Description
Diagrams, photographs, and instructional text share what it takes to send humans to Mars, from spacesuits and rovers to surviving subzero temperatures and raging dust storms.