Hopsa
The Earth behaves like a giant, weak magnet, and a magnetized needle that can turn freely lines up with it – just like the compasses sailors used for centuries. Testing it again and again teaches kids to check a result before they believe it.
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
