Reviewed by HootRated editorial · Last updated October 16, 2026

Matter and change

Name: Matter and change
ISBN: 1592429041

Age Rating, Reading Level & Content Guide

teacher's guide

Delta Science Readers; Physical Science (Delta Education)

Reading Level 7-8 C · Gentle Ages 13+ Sweet Spot Page-Turner

The text is written at a 7th grade reading level, the subject matter is intended for teens (ages 13+), and the content is gentle with no concerning themes. Its HootRating code, C, means gentle content.

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About This Book

Discover the fascinating world of matter and how it transforms! Explore the building blocks of everything around us, learn about different properties, and see how matter changes through exciting physical and chemical processes.

Themes

Science & NatureEducation

Quick Assessment

This is a Level 7-8 book with gentle content intensity. It's a Sweet Spot read — challenging text with gentle themes, ideal for advanced or 2e readers. No notable content concerns flagged. Written for readers ages 13+.

Why we rated Matter and change C (Gentle)

Matter and change is written at a Level 7-8 reading level across 136 pages (approximately 6,826 words). Upper Grades (Ages 13+) is the typical interest range for this book — readers in that age band have the maturity and attention span suited to the story, separate from whether they can decode the words.

Read aloud, Matter and change takes about 46 minutes, which fits within a single read-aloud session.

We rate Matter and change as C (Gentle) 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, Matter and change weaves together science & nature and education.

Good fit for

✓ Children in the Ages 13+ range — the maturity and attention span match the story's pacing.
✓ Reluctant readers who need fast-paced, hook-heavy stories to stay engaged.
✓ Kids drawn to stories about science & nature, education.
✓ Curious kids who prefer real-world topics over made-up stories.

Maybe not for

! Readers looking for something heavier — this is a gentle, low-stakes story by design.

For Parents

Content Intensity

C · Gentle

Emotional

Gentle

Physical

Gentle

Social

Gentle

Thematic

Gentle

Reading the HootRating code: the first letter is the content intensity (C = Gentle · L = Mild · M = Moderate · I = Intense · V = Very Intense); the second, when there is one, is the kind of content that drives it (E = Emotional · P = Physical · S = Social · T = Thematic). Reading level and age range are rated separately. How we rate

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

Data confidence: standard

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