Phineas L. MacGuire . . . Gets Slimed!, The Second Experiment
Frances O'Roark Dowell
Phineas L. MacGuire . . . Gets Slimed!, The Second Experiment
Age Rating, Reading Level & Content Guide
From the Highly Scientific Notebooks of Phineas L. Macguire
by Frances O'Roark Dowell
The text is written at a 4th grade reading level, the subject matter is intended for middle graders (ages 9–12), and the content is gentle with no concerning themes.
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About This Book
Have you ever wondered what happens when science experiments get a little out of hand? Phineas is on a mission to become the best fourth-grade scientist, and his latest obsession with mold might just change everything. But can he handle the slimy surprises that come with it?
Quick Assessment
This middle-grade fiction follows Phineas, a curious and determined fourth grader passionate about science. As he helps a friend with a Girl Scout badge project involving mold and penicillin, young readers are introduced to basic scientific concepts in a fun and engaging way. Suitable for ages 9-12, the book encourages curiosity and learning with light humor and age-appropriate content.
Why we rated Phineas L. MacGuire . . . Gets Slimed!, The Second Experiment 9C
Phineas L. MacGuire . . . Gets Slimed!, The Second Experiment is written at a Level 4-5 reading level across 116 pages. Strong independent readers around grade 5.5 can typically handle this book on their own; with parent or teacher support, Phineas L. MacGuire . . . Gets Slimed!, The Second Experiment works for readers up to grade 6.5.
We rate Phineas L. MacGuire . . . Gets Slimed!, The Second Experiment as 9C ("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, Phineas L. MacGuire . . . Gets Slimed!, The Second Experiment explores science & nature, friendship, humor, and coming of age — these threads give the book room to mean different things to different readers.
Good fit for
- ✓ Children in the Ages 9-12 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, friendship, humor.
Maybe not for
- ! Readers whose emotional readiness lags behind their decoding skills — this book's intensity outruns its reading level, a classic "gifted kid" mismatch.
- ! Reluctant readers who need a fast hook — the pacing here rewards patience.
For Parents
Content Intensity
9C — ClearNo conflict beyond everyday childhood experiences. Safe for sensitive readers.
Was our "Gentle" content intensity rating accurate for this book?
Reading Insights
Hook Factor
2/10A 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
- 9781410404404
- Pages
- 116
- Publisher
- Thorndike Press
- Published
- February 6, 2008
- Type
- Fiction