How do you teach your child that scientists don’t always have clear answers? With this lesson, you can. It dives into uncertainty in physics — the surprising idea that we can’t know everything about tiny particles. Heisenberg’s discovery shook the world of science. It shows us that measuring one thing often messes up another. Strange, right? But it’s real, and it’s actually part of how our universe works.

You don’t need to be a science expert to teach this. I’ve broken the topic down into bite-sized explanations, simple activities, and creative tasks your child will enjoy. Whether they love science or just ask tricky questions, this lesson helps you guide them through it all. It’s written for learners aged 8–16, but you can easily adapt it to fit your pace and style. Expect curiosity, imagination — and maybe a few “wow” moments along the way.