Reading Metrics
Grade Level
Upper Grades (UG 9-12)
Book Level
9.0
Points
5.0
Fiction/Nonfiction
Nonfiction
Word Count
25511
Points per Word
0.000196
Page Count
144
Points per Page
0.034722
Series
Profiles in Science
Description
This biography discusses the life of Johannes Kepler, the seventeenth-century German astronomer and mathematician who formulated the three laws of planetary motion.