Free science projects straight from Caleb's kitchen. Every one is a teaser from a real PopSciFun kit - do them at home, then join the club for 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. Classic chemistry for all ages.
Watch on YouTubeBuild a maze, race a magnet, 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 InstagramThe classic. We actually measure the geyser and explain why the math works.
Watch on YouTubePlant biology + kitchen scraps = science homework that tastes like lunch.
Watch on TikTokOne plate. One minute. Every kid's favorite first experiment.
Watch on YouTubeTwo full YouTube episodes embedded below. Tap to play.
Tag @popscifun with #PopSciFun on any platform - or email to learn@popscifun.com.
Featured members get a free bonus kit + pen pal shout‑out in the next mailer.
These are the free teasers. Every PopSciFun kit contains six full lessons - experiment, pen pal postcard, recipe, magic trick, challenge, surprise bonus.