The greenhouse effect

Rebecca L. Johnson

Cover of The greenhouse effect

The greenhouse effect

Age Rating, Reading Level & Content Guide

by Rebecca L. Johnson

Reading Level 9-10 Gentle (Lvl 1) Ages 9-12 Sweet Spot

The text is written at a 9th 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

Explore how Earth's atmosphere traps heat and what that means for our planet's future. Discover the science behind global warming and the important research that helps us understand this vital environmental issue. This journey into the greenhouse effect reveals why protecting our world matters now more than ever.

Themes

Science & NatureEnvironmental Awareness

Quick Assessment

This is a Level 9-10 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 9-12.

For Parents

Content Intensity

Level 1 — Gentle
Gentle Mild Moderate Intense Very Intense

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

3/10

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
8
Emotional Weight
2
Narrative Pace
5
Theme Richness
2
World Scope
1
Data Confidence
8

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Details

Book Length

112 pages
20,445 words
2h 16m read-aloud
ISBN
0822515911
Pages
112
Publisher
Lerner Publications
Published
1990
Type
Nonfiction
Word Count
20,445
Read-Aloud
~2h 16m
Text Density
Standard

Genres

Global warming

Subjects

Greenhouse Effect, AtmosphericGlobal Warming