1) Tiny things can be in two places
Picture a toy car that can be on the bed and under the table at the same time, until you look. When you check, it chooses one spot.
BIG IDEAS FOR LITTLE MINDS
Quantum Theory, Explained Like You're 5
Imagine the world is made of tiny magic dots so small you can't see them — even with super glasses. Quantum theory is the set of rules these tiny dots follow.
Three Fun Quantum Ideas
Think of these like playground rules for tiny things.
2) Looking changes the game
For very tiny things, peeking is like giving them a little bump. So when scientists look closely, the tiny thing can change what it's doing.
3) Tiny friends can be connected
Two tiny dots can be best friends, even far apart. If one changes, the other "knows" right away. That's called entanglement.