Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
4.8
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
1433
Points per Word
0.000349
Page Count
32
Points per Page
0.015625
Description
This book looks at the different places light comes from, including natural and artificial sources. The coauthor is Richard Spilsbury.