Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
4.8
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
1979
Points per Word
0.000253
Page Count
32
Points per Page
0.015625
Description
Text and photographs are used to explain how light interacts with other objects, what stars are made of, how shadows form, and why mirrors can reflect an image.