Reading Metrics
Grade Level
Lower Grades (LG K-3)
Book Level
3.2
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
406
Points per Word
0.001232
Page Count
24
Points per Page
0.020833
Series
Everyday Mysteries
Description
Readers learn about both kinds of light bulbs, how they work, and their differences.