Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
6.0
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
3057
Points per Word
0.000164
Page Count
40
Points per Page
0.0125
Description
This collection of brief biographies profiles the careers and contributions of various astronomers, from early times to present-day.