Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
4.7
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
3063
Points per Word
0.000163
Page Count
32
Points per Page
0.015625
Description
This book explains why light and sound are vital in observing the world, including description of how light is made, reflection, refraction, and absorption, how the eyes and ears work, the Doppler effect, and the speed of sound.