What reading level is Bad Days in Science and Invention?

Bad Days in Science and Invention by Michael Regan is at a Level 6-7 reading level. Recommended for Middle Grades readers (Ages 9-12).

What age is Bad Days in Science and Invention appropriate for?

Bad Days in Science and Invention is recommended for Ages 9-12. HootRating: 11C (Clear).

What genre is Bad Days in Science and Invention?

Bad Days in Science and Invention is nonfiction — Juvenile Nonfiction. Part of the Ignite; Whoops! A History of Bad Days series.

Does Bad Days in Science and Invention have any content warnings?

Bad Days in Science and Invention has a HootRating of 11C (Clear). No specific content flags noted. On HootRated, every book is rated across four dimensions — emotional, physical, social, and thematic — to help parents make informed choices.

How many pages is Bad Days in Science and Invention?

Bad Days in Science and Invention by Michael Regan is 49 pages (approximately 6,194 words).

Reviewed by HootRated editorial · Last updated May 18, 2026

Bad Days in Science and Invention

Michael Regan

Bad Days in Science and Invention

Age Rating, Reading Level & Content Guide

by Michael Regan

Ignite; Whoops! A History of Bad Days

Reading Level 6-7 11C Ages 9-12 Sweet Spot Page-Turner

The text is written at a 6th 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

Discover the surprising slip-ups and funny failures that happened during some of history's most famous scientific discoveries and inventions. These unforgettable moments show that even the greatest minds have their off days. Dive into a world where mistakes lead to unexpected learning and creativity!

Themes

ScienceInventionsHumorLearning

Quick Assessment

This is a Level 6-7 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 9-12.

Why we rated Bad Days in Science and Invention 11C

Bad Days in Science and Invention is written at a Level 6-7 reading level across 49 pages (approximately 6,194 words). Strong independent readers around grade 7.2 can typically handle this book on their own; with parent or teacher support, Bad Days in Science and Invention works for readers up to grade 8.2.

Read aloud, Bad Days in Science and Invention takes about 41 minutes, which fits within a single read-aloud session.

We rate Bad Days in Science and Invention as 11C ("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, Bad Days in Science and Invention explores science, inventions, humor, and learning — 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.
✓ Reluctant readers who need fast-paced, hook-heavy stories to stay engaged.
✓ Kids drawn to stories about science, inventions, humor.
✓ Readers who fall hard for one book and want a long series to live in — there are 3 more books in the Ignite; Whoops! A History of Bad Days series.
✓ 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.