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The Fish Classes (Family Trees)

Rebecca Stefoff

Cover of The Fish Classes (Family Trees)

The Fish Classes (Family Trees)

Age Rating, Reading Level & Content Guide

by Rebecca Stefoff

Reading Level 3 8C Ages 13+ Balanced Read

The text is written at a 3rd grade reading level, the subject matter is intended for teens (ages 13+), and the content is gentle with no concerning themes.

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About This Book

Did you know that half of all animals with backbones are fish? From tiny, colorful creatures to huge whales, fish live in almost every watery place on Earth. What secrets do these amazing underwater animals hold, and which ones have disappeared forever?

Themes

ScienceLife SciencesNatureEducation

Quick Assessment

This nonfiction book introduces readers to the fascinating world of fish, covering their origins, diverse species, and the five main classes of modern fish. Aimed at middle school to young adult readers, it provides scientific explanations suitable for ages 13-18, with clear language and engaging facts. The book also touches on environmental challenges fish face today, making it a valuable educational resource.

Why we rated The Fish Classes (Family Trees) 8C

The Fish Classes (Family Trees) is written at a Level 3 reading level across 96 pages. Strong independent readers around grade 4.0 can typically handle this book on their own; with parent or teacher support, The Fish Classes (Family Trees) works for readers up to grade 5.0.

We rate The Fish Classes (Family Trees) as 8C ("Clear") because the content sits in the "Gentle" range — no conflict beyond everyday childhood experiences. Across our four dimensions (emotional, physical, social, thematic) the book reads as evenly gentle; no single dimension stands out as a concern.

No specific content flags were raised by community reviewers, which is consistent with the gentle intensity score.

Thematically, The Fish Classes (Family Trees) explores science, life sciences, nature, and education — these threads give the book room to mean different things to different readers.

Good fit for

  • Children in the Ages 13+ range — the maturity and attention span match the story's pacing.
  • Patient readers who enjoy slower, character-driven stories.
  • Kids drawn to stories about science, life sciences, nature.
  • Curious kids who prefer real-world topics over made-up stories.

Maybe not for

  • ! Reluctant readers who need a fast hook — the pacing here rewards patience.

For Parents

Content Intensity

8C — Clear
Emotional
Clear
Physical
Clear
Social
Clear
Thematic
Clear

No conflict beyond everyday childhood experiences. Safe for sensitive readers.

Data confidence: standard

Was our "Gentle" content intensity rating accurate for this book?

Reading Insights

Hook Factor

1/10

A steady, thoughtful read that rewards patient readers.

Discussion Potential

1/10

A lighter read — great for independent enjoyment.

Book DNA

Multi-dimensional content fingerprint

Vocabulary Level
2
Emotional Weight
2
Theme Richness
4
World Scope
1
Data Confidence
7

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Details

Book Length

96 pages
ISBN
9780761426950
Pages
96
Publisher
Marshall Cavendish
Published
November 15, 2007
Type
Nonfiction

Genres

Subjects

Life SciencesScienceScience & NatureBiologyAnimalsFishesZoology