What is Schrödinger’s cat?

Schrödinger’s cat is a clever idea that shows how things can be both alive and dead at the same time, just like when you’re not sure whether your favorite toy is in the box or not.

Imagine there's a big, closed box. Inside the box is a cat, a bottle of poison, and a little machine. The machine has a chance to break the bottle, which would let out the poison and make the cat sleepy (or maybe even dead). But until you open the box, you don’t know if the cat is alive or dead, it's like when your mom hides a cookie in one of two jars, and you have to pick one.

When you finally open the box, you find out for sure: the cat is either alive, because the bottle stayed whole, or dead, because the poison came out. But before you looked, the cat was both alive and dead, just like how a chocolate bar can be both "half-eaten" and "not half-eaten" until you look at it.

This idea helps scientists think about tiny particles that behave in strange ways, but for now, imagine your cat is playing hide-and-seek inside the box!