The Gray-Haired Scientist logo The Gray-Haired Scientist

Science that gets kids talking.

I'm a 6th grade science teacher with 25+ years in the classroom. I create activities and projects that get students observing closely, thinking hard, and backing up their ideas with evidence — and every resource is classroom-tested by my own students first.

The Gray-Haired Scientist — winking scientist logo
Cover of the free Two Observations and One Inference sample
Free Download

Try it free: Two Observations and One Inference — Sample

Two photos from the full pack, the same routine my students use: look closely, write two observations, then make one inference and defend it. No prep, print or assign digitally.

Download Free on TPT

Brain Teasers & Team Challenges

Ranking challenges that get a whole room arguing — in the good way. Every student commits to an answer, then has to defend it.

1. SoloRank the items on your own. No talking — your call, your reasoning.
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2. TeamArgue it out and reach one team ranking everyone can live with.
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3. Expert RevealCompare with the expert ranking and score how close your team came.
Cover of Stranded in Antarctica survival ranking challenge

Stranded in Antarctica!

A team survival ranking challenge. A supply drop goes wrong at a research station — which gear matters most? My 6th graders argued about the flare gun for a solid ten minutes.

$4.50 View on TPT
Cover of One Slot on the Space Station values ranking challenge

One Slot on the Space Station

Five experiments are competing for one open slot on a space station. Rank them solo, defend your pick as a team, then meet the expert panel's choice — and the reasons behind it.

$4.50 View on TPT

Shop All Resources

Everything is sold and downloaded through Teachers Pay Teachers — click any resource to see the full listing, previews, and reviews.

Cover of Two Observations and One Inference photo activity pack

Two Observations and One Inference

Ten real photos. For each one, students write two observations and one inference — the thinking skill that starts every investigation.

Cover of the free Two Observations and One Inference sample

Two Observations and One Inference Sample

A free taste of the full photo inferencing pack — two photos, the same observe-and-infer routine.

Cover of the Most Wanted Microbe project

Most Wanted Microbe Project

A research project with a planner, a wanted-poster template, and a rubric. Students build the case against their microbe.

Cover of Parts of a Microscope worksheet

Parts of a Microscope Worksheet

Labeling practice, a study sheet, matching, and a quick quiz for the parts of a microscope.

Cover of Notice and Infer photo of the day bell ringers

Notice & Infer — Photo of the Day Bell Ringers

Twenty photo-of-the-day bell ringers that start class with close noticing and smart inferring in about five minutes.

Cover of Halloween Observations and Inferences

Halloween Observations and Inferences

Spooky-season photos for the same observe-and-infer routine — atmosphere, no gore.

Cover of Parts of a Microscope pixel art activity

Parts of a Microscope Pixel Art

Self-checking Google Sheets pixel art: answer microscope questions and the picture reveals itself. Two versions included.

Cover of Halloween Multiplication pixel art activity

Halloween Multiplication Pixel Art

Self-checking multiplication practice in Google Sheets — correct answers color in a Halloween picture. Three versions.

Cover of Fantasy Football Math activity

Fantasy Football Math Activity

Scoring, a salary cap, lineup averages, and graphing — real math hiding inside fantasy football.

Cover of Hoop Glider STEM Challenge

Hoop Glider STEM Challenge

A flight engineering design activity: build a paper-and-straw hoop glider, test it, and improve the design.

Cover of Paper Chain STEM Challenge

Paper Chain STEM Challenge

No-prep engineering: one sheet of paper and a short strip of tape — who can build the longest chain?

Cover of Sub Binder Template Kit

Sub Binder Template Kit

Substitute teacher forms, a seating chart, and the end-of-day sub report — everything a sub needs in one binder.

Cover of Science Sub Plans microbes pack

Science Sub Plans — Microbes

Emergency substitute plans that run themselves: a microbes reading passage, comprehension questions, and a word search.

Cover of Stranded in Antarctica survival ranking challenge

Stranded in Antarctica

A survival ranking team-building challenge: rank the gear solo, reach a team consensus, then face the expert ranking.

Cover of One Slot on the Space Station values ranking challenge

One Slot on the Space Station

A values ranking team-building challenge: five experiments, one open slot, and a decision your team has to defend.

Cover of Science That Actually Works
The Book

Science That Actually Works

The experiments and activities from my classroom that actually work — the ones students ask to do again — collected in one book for teachers and curious kids.

Paperback $13.99  ·  Kindle $7.99

Amazon listing coming soon

The book is in final review at Amazon. This page will link straight to it the moment it's live.

About

The Gray-Haired Scientist logo

I'm a 6th grade science teacher with 25+ years in the classroom. I create activities and projects that get students observing closely, thinking hard, and backing up their ideas with evidence.

My teaching runs on curiosity first: look carefully, say what you see, then figure out what it means. If my students are talking, wondering, and debating the evidence, it's a good day. Every resource in this store was classroom-tested by my own students before it was listed.

And yes, the gray hair is real. Earned every strand of it in the classroom!

Questions

Where do I actually buy and download the resources?

Everything is sold through Teachers Pay Teachers. Each "View on TPT" button takes you to that resource's page on TPT, where you check out and download — and where the file stays in your TPT library if you ever need it again.

What grades are these for?

Most resources are built for grades 3–8, with the core science activities aimed at upper elementary and middle school. Each TPT listing shows its exact grade range.

Are these really classroom-tested?

Yes. I teach 6th grade science, and my own students run every activity before it's listed — that's how the kinks get found: timing that doesn't fit a period, directions kids misread, answer keys that need a second look.

What if I need a refund?

Purchases are handled by Teachers Pay Teachers under TPT's refund policy. If something is wrong with a file, reach out through the TPT listing page and I'll make it right.