Reading Metrics
Grade Level
Lower Grades (LG K-3)
Book Level
5.7
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
2215
Points per Word
0.000226
Page Count
32
Points per Page
0.015625
Series
Planetary Exploration
Description
This book discusses Mercury's formation, surface, atmosphere, orbit, and rotation, as well as "Mariner 10" and MESSENGER, the unmanned spacecraft that have flown by Mercury and provided more insight into the planet's features.