A science cube that pops open into a lesson kids can't put down. Folds flat to the size of a book for the shelf.
Monthly cube kits, pen pals worldwide, experiments, recipes, magic tricks. Kid‑owned, age 7.
Two minutes. Monthly or Annual. Pen pal postcards from day one. Cancel anytime.
Book-sized kit lands in the mailbox. Pop it open and the lab unfolds. When you're done, fold it flat and slide it on the shelf.
Do the experiment, eat the recipe, write back to your pen pal, and post your video with #PopSciFun.
Not a box. A science cube that pops open into a lesson and turns learning into play. Kids light up the second it unfolds. Then it folds flat to the size of a book and slides right onto the shelf. Screen-free fun the whole family enjoys together. What's inside changes every month. The point isn't a checklist of parts. The point is kids begging to open the next one.
Ships flat. Pops open into a science cube with a lesson inside. Kids are excited and surprised every time. Folds back down to the size of a book for the shelf.
Hands-on. Weird. Memorable. The way Caleb wishes science was taught at school. Kids finish the kit and teach the lesson back to you.
The one thing in every single kit. A handwritten card from another Young Scientist Club member. Could be Ohio. Could be Osaka. We shuffle by hand.
One month a chemistry experiment, the next a build challenge, the next a magic trick with real science under the hood. Surprise is half the fun.
Kids are happy to read and experiment when the experience is enjoyable, and that's what PopSciFun does best. Make Science Fun.
Send one as a birthday or holiday gift and watch it steal the show. A present grandparents can feel great about, because their grandkid is learning real science while having a blast.
Every plan includes the science cube and a pen pal postcard. Kids learn through play, excited and surprised every time the cube pops open. What's inside changes every month, that's the point. Reserve today, pay nothing now. Your card is only charged when your first kit ships. Estimated ship date: July 1, 2026.
Month‑to‑month. Cancel any time. Founding member presale price locked in.
Founding member presale · becomes $29.99 after presale
🔒 Reserve today · Pay nothing until your kit ships · Est. July 1, 2026
13 kits for $299. 12 monthly kits plus a FREE Holiday Science Spectacular kit shipping December 2026. Every annual funds 5 scholarship kits for kids in underserved communities.
Flat $299 · Includes Holiday Kit · Funds 5 scholarships · Founding member presale
🔒 Reserve today · Pay nothing until your first kit ships · Est. July 1, 2026
Every annual subscription funds five PopSciFun kits for kids in communities that need them most. That's not a marketing line. It's math. We buy the kits, we ship them, we send you proof.
Scholarship kits are funded from annual subscription revenue. Not tax‑deductible - PopSciFun is not a 501(c)(3). Partner schools announced as onboarded.
Every kit includes a blank postcard addressed to PopSciFun HQ. Kids add their own stamp, write something, and mail it in. Every postcard we get is shuffled and slipped into another kid's next kit. No kid ever sees another kid's address.
The postcard format removes all social pressure. No face‑to‑face. Just science, shared curiosity, and connection at their own pace. Thoughtfully designed for every kid - including kids on the autism spectrum or anyone who learns differently.
Homeschooled. Age 7 1/2. Loves Legos, origami, robots, and anything that fizzes. Wanted to find other kids who think science is as fun as he does, so he built a club and sent it through the mail.
I'm Caleb's dad. During the day I serve as a University Director of Innovation and Intellectual Property. After work I enjoy making my kids healthy food, teaching them about fitness, and most importantly, science. Recently Caleb and I decided to start a business - not a lemonade stand, an actual company.
"Best gift I have ever given my grandkids! PopSciFun is amazing from the first moment. The fact that it's built by a 7‑year‑old makes it even more special. Caleb gets kids in a way that big company kits do not."
Tap any card to watch. Every project is a teaser from a real kit - do them at home, then join the club to get the whole Mystery Curriculum in the mail.
What happens when you put marshmallows in a syringe? (Spoiler: science.)
Watch on TikTokOil, water, food coloring, and one fizzy tablet. Chemistry you can drink - okay, don't drink it.
Watch on YouTubeBuild a maze, race a magnet, and learn why iron acts weird near electricity.
Watch on TikTokTurn a phone camera into a microscope with one drop of water. Yes, really.
Watch on YouTubeHair‑raising physics. Dad got a shock. Caleb will not stop laughing.
Watch on InstagramCapillary action looks like magic. Cups, paper towels, food coloring - done.
Watch on TikTokEvery action has a reaction. Caleb tested this on Dad's coffee. Don't.
Watch on YouTubeSupercool a bottle of water. Tap it. Boom - frozen in one second.
Watch on TikTokRefraction, reflection, and a whole lot of spinning. Great rainy‑day move.
Watch on InstagramExplosive science kits. Pen pals worldwide. Scholarship kits funded. A community that tells every kid: you belong here.