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Matter and Energy

Paul Fleisher

Cover of Matter and Energy

Matter and Energy

Age Rating, Reading Level & Content Guide

Principles of Matter and Thermodynamics

by Paul Fleisher

Secrets of the Universe

Reading Level 7 12C Ages 13+ Sweet Spot

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.

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About This Book

Explore the fascinating world of matter and energy through the stories behind groundbreaking scientific discoveries. Dive into how elements combine, the mysteries of the periodic table, and the fundamental laws that govern heat and energy transformations. This engaging journey reveals the minds and experiments that shaped our understanding of physics.

Themes

Science & NaturePhysicsEducationJuvenile Nonfiction

Quick Assessment

This is a Level 7 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 Energy 12C

Matter and Energy is written at a Level 7 reading level across 63 pages (approximately 9,400 words). Strong independent readers around grade 8.0 can typically handle this book on their own; with parent or teacher support, Matter and Energy works for readers up to grade 9.0.

Read aloud, Matter and Energy runs about 1.1 hours — long enough to span several bedtime sessions.

We rate Matter and Energy as 12C ("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, Matter and Energy explores science & nature, physics, education, and juvenile nonfiction — 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.
  • Readers who like a steady plot with enough momentum to keep pages turning.
  • Kids drawn to stories about science & nature, physics, education.
  • Curious kids who prefer real-world topics over made-up stories.

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.

For Parents

Content Intensity

12C — 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

6/10

Engaging read with solid pacing and interesting themes.

Discussion Potential

1/10

A lighter read — great for independent enjoyment.

Book DNA

Multi-dimensional content fingerprint

Vocabulary Level
6
Emotional Weight
2
Narrative Pace
7
Theme Richness
4
World Scope
1
Data Confidence
8

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Details

Book Length

63 pages
9,400 words
1h 3m read-aloud
ISBN
0822529866
Pages
63
Publisher
Twenty-First Century Books
Published
May 2001
Type
Nonfiction
Word Count
9,400
Read-Aloud
~1h 3m
Text Density
Light Text

Genres

Subjects

HeatMatter & MaterialsScience & NaturePhysicsThermodynamicsConstitutionMatterMatter, Constitution