Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
6.1
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
6218
Points per Word
0.000161
Page Count
48
Points per Page
0.020833
Description
This book explains basic concepts of light and sound such as how sound travels, what sonar is, and why cats see well in low light. The co-author is Richard Spilsbury.