Every lesson is a case to crack.
Mystery Lab Learning turns middle school science into investigations. Students get a puzzling phenomenon, gather evidence, and close the case with a claim they can defend. You get print-ready, no-prep lessons that actually get kids talking.
Students do the thinking. The mystery does the hooking.
The phenomenon
A real, weird event opens the case: a frog that floats, a spoon that vanishes, a city that runs out of water.
The evidence
Students analyze data, models, and clues. Every clue connects to the science they need for the standard.
The claim
A CER organizer scaffolds the argument: claim, evidence, and the science reasoning that links them.
Case closed
Answer keys, sample responses, and a sub-friendly plan mean you can teach it tomorrow, or leave it for a sub.
Pick your next case.
Every product line is built for the middle school science classroom. Browse by line or search a topic, and each card opens the product on Teachers Pay Teachers.
89 phenomenon CER sets, one for every standard.
Each set is a complete lesson: a teacher deck with notes, a student deck, and a CER packet built around a real phenomenon. Middle school covers every MS performance expectation, and there's a grades 3–5 collection too. Sets are rolling out now, and subscribers hear about each one first.
Join the lab. Get classroom freebies, free.
One sign-up gets you a private link to the whole free library, and new freebies are added all year.
- A complete Case File with story, evidence, CER organizer, and key
- A week of bell ringers for CER, graphing, and variables
- A full phenomenon CER set with teacher and student decks
- A logic puzzle sampler for early finishers
Made by a middle school science teacher, tested on real seventh graders.
Mystery Lab Learning started in my own classroom. My students would argue about a mystery for twenty minutes, then forget a worksheet five minutes after it was done. So I started writing every lesson as a case. Each one is built for a real class period, with the keys, scaffolds, and sub plans I wanted when I was planning at 10 p.m.
Good questions, answered.
What grades are these for?
Everything in the store is written for grades 6–8 and aligned to NGSS middle school performance expectations. The phenomenon CER library also includes a grades 3–5 collection.
What formats do the resources come in?
Most resources include a printable PDF. Many also include Google Slides, and digital activities come as a single HTML file that opens in any browser or as a SCORM package for your LMS (Schoology, Canvas, and others). Try the free HTML & SCORM sample to check that your school's system supports them.
Can I use a Case File as a sub plan?
Yes. Every Science Mystery includes a student-facing story and organizer, so students can work independently, plus a teacher key for grading when you return.
How do I get the free resources?
Enter your email in any sign-up form on this site. You'll get an email with a private link. Click it and your whole free library unlocks. New freebies are added all year, and the same link keeps working.
Do you offer school or district licenses?
Yes. Email mysterylablearning@gmail.com with your school and number of teachers, and I'll send a quote. You can also buy multiple licenses on TPT at a discount.