Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
5.9
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
1852
Points per Word
0.00027
Page Count
32
Points per Page
0.015625
Description
Scientists once thought that the sponge was a kind of plant. In fact, sponges are some of the world's oldest animals! This book explores the many secrets of the sponge, its life cycle, and its many uses in the modern world.