Reading Metrics
Grade Level
Lower Grades (LG K-3)
Book Level
3.8
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
724
Points per Word
0.000691
Page Count
24
Points per Page
0.020833
Series
Human Body Helpers
Description
Find out why the heart is so important to the body, and why some people need to have a pacemaker fitted.