Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
7.7
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
6429
Points per Word
0.000156
Description
This book discusses the science of space and how observation and experimentation have enabled us to discover facts about the origins of the universe, the weight of the planets, and the temperature of the Sun.