Merry Christmas! The Katies have one final craft for you this holiday week, so you can add your final touch to your decorations! They’re making the viral foam popcorn garland, made famous on TikTok.

What do you get when you combine soap and water with oxygen bubbles? FOAM! Watch this video and learn how to make your very own foam at home! Click here to download a PDF of the experiment to print & ...

Carbon foam is a super-handy material. It is stiff and lightweight, making it good for structural applications, and it is also great for insulating buildings. The problem is, it’s hard to make. Or ...