Reading Metrics
Grade Level
Lower Grades (LG K-3)
Book Level
3.4
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
719
Points per Word
0.000695
Description
Imagine if you didn't have muscles. You would not be able to smile, run, or play. You wouldn't even be able to eat! Learn about the many important jobs muscles do.