Reading Metrics
Grade Level
Lower Grades (LG K-3)
Book Level
4.4
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
1220
Points per Word
0.00041
Page Count
32
Points per Page
0.015625
Description
This book describes the history of the light bulb from its invention by Thomas Edison in 1879 to the lights of today.