Cobalt
Susan Watt
Cobalt
Age Rating, Reading Level & Content Guide
by Susan Watt
The text is written at a 2nd grade reading level, the subject matter is intended for younger children (ages 5–8), and the content is gentle with no concerning themes.
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About This Book
Cobalt isn’t just a color—it’s a tiny hero hiding in your world! This shiny metal powers everything from batteries to blue paint, making life brighter and better. Discover why cobalt is more important than you ever imagined.
Themes
Quick Assessment
This early reader introduces children ages 5-8 to the element cobalt, explaining its properties, natural sources, and everyday uses in a simple and engaging way. The book supports science learning with accessible language suitable for grade 2 readers, fostering curiosity about chemistry and the natural world.
Why we rated Cobalt 7C
Cobalt is written at a Level 2 reading level across 36 pages. Strong independent readers around grade 3.0 can typically handle this book on their own; with parent or teacher support, Cobalt works for readers up to grade 4.0.
We rate Cobalt as 7C ("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, Cobalt weaves together science & nature and education.
Good fit for
- ✓ Children in the Ages 5-8 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 & nature, education.
Maybe not for
- ! Reluctant readers who need a fast hook — the pacing here rewards patience.
For Parents
Content Intensity
7C — ClearNo conflict beyond everyday childhood experiences. Safe for sensitive readers.
Was our "Gentle" content intensity rating accurate for this book?
Reading Insights
Hook Factor
1/10A steady, thoughtful read that rewards patient readers.
Discussion Potential
1/10A lighter read — great for independent enjoyment.
Book DNA
Multi-dimensional content fingerprint
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Details
Book Length
- ISBN
- 9780761422006
- Pages
- 36
- Publisher
- Marshall Cavendish
- Published
- 2007
- Type
- Fiction