Drops on a Coin

Water particles pull on each other, so the surface acts like a stretchy skin (surface tension) and the water piles up into a dome instead of spilling. Letting out one drop at a time is a quiet exercise in fine motor control and focus – perfect while waiting for food at a restaurant.

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.

Join the waitlist

Coming soon to the App Store and Google Play