Crustaceans
by Edward R. Ricciuti
Blackbirch Press 1994
Great fit for 7th grade
Reading level and content both target 4th–8th grade · ages 9–14
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Genre
Themes
- adaptation
- habitats and ecosystems
- life cycles
- classification
- biodiversity
- predator-prey relationships
- survival
- human impact on nature
About this book
This photo-rich nonfiction book introduces readers to the world of crustaceans—crabs, lobsters, shrimp, and more. Edward R. Ricciuti explains how these animals are built, how they grow and molt, where they live, and how they survive. Clear writing, diagrams, and real-world examples make it great for science reports and curious animal lovers. Best for upper elementary and middle school readers who enjoy learning about ocean life and unusual creatures.
Setting: oceans, coasts, and freshwater habitats worldwide
Frequently Asked Questions
Is Crustaceans right for my child?
Yes — Crustaceans is a great fit for 7th grade. The reading level is AR 7.3, which is typical for 7th grade. The interest level is rated Middle Grades (4–8), meaning the themes and content are designed for ages 9–14 (4th–8th grade). Themes include adaptation, habitats and ecosystems, life cycles.
How long does it take to read Crustaceans?
At a typical 7th grade reading pace, Crustaceans takes around 41m to finish. The book has 7,100 words. Slower or faster readers may vary significantly.
Does Crustaceans have an AR quiz?
Yes — Crustaceans has an AR quiz available, worth 1 point. Your child will need to take and pass the quiz through their school's Accelerated Reader program to earn credit. The quiz is typically 5–20 multiple choice questions about plot, characters, and setting.
What grade level is Crustaceans?
Crustaceans has an AR reading level of 7.3, which places it at a 7th grade reading difficulty. The interest level is rated Middle Grades (4–8) — this reflects the age-appropriateness of the content and themes, not just the reading difficulty. A strong younger reader may handle the words fine while the themes are aimed at an older audience, or vice versa.