Hopsa
Shaving-cream marbling looks like magic: drops of color float on the foam, you drag a stick through them, and the swirls print onto paper. Kids see cause and effect in real time – one swirl too many and the colors turn brown – which is the heart of scientific thinking.
The steps are in the app
Step-by-step instructions, tips and an easier and a harder version are waiting in the Hopsa app – along with 300 more ideas matched to your kids’ ages.
Coming soon to the App Store and Google Play
