Okay, so have you ever seen a frying pan? You know, the one Mommy or Daddy uses to cook pancakes or eggs? Well, some frying pans have a special type of coating on them that makes it really hard for food to stick to the bottom of the pan.
This coating is called a non-stick surface! It's like a little superpower for your frying pan, because it helps food slide around easily and not get stuck on the bottom.
It's kind of like when you put on sunscreen at the beach. The sunscreen keeps the sun from sticking onto your skin and burning you. The non-stick surface works the same way, by keeping food from sticking to the frying pan and burning or making a big mess.
So, now you know what a non-stick surface is! Isn't that neat?