Reading Metrics
Grade Level
Lower Grades (LG K-3)
Book Level
3.3
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
725
Points per Word
0.00069
Page Count
24
Points per Page
0.020833
Description
In this book, readers will learn why zebra mussels are considered an invasive species, how they have established themselves in and impacted new ecosystems, and what scientists are doing to combat the problem.