When two particles are in entanglement, they're connected in a special way, like two peas in a pod. But, unlike peas, entangled particles can be really, really far apart.
Think of it like a game of cosmic telephone. You whisper a secret to your friend, but, because of entanglement, your friend's friend, who's, like, on the other side of the universe, gets the message too!
This is because, in the quantum world, information isn't like, you know, a thing that moves. It's more like... well, it's just connected, man.
See how entanglement is used to make really fancy computers