Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
6.2
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
5222
Points per Word
0.000191
Page Count
32
Points per Page
0.03125
Series
Exploring Our Solar System
Description
This introduction to telescopes and observatories answers questions about the history of star spotting, how light travels through space, how optical telescopes work, x-ray astronomy, and related topics.