Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
6.3
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
7980
Points per Word
0.000125
Page Count
48
Points per Page
0.020833
Series
Cool Science (Lerner)
Description
This book discusses astrobiologists, scientists who search for life in the universe, study mission photographs, and test meteorites for alien bacteria.