Okay, little buddy! Let’s imagine airplanes are like big birds. When they want to fly, they zoom up into the sky. But when they aren’t flying, they have to move on the ground. That’s where the rolling comes in!
Think about a toy car you have. When you push it, it rolls on the floor, right? Airplanes do something similar when they’re on the ground. They have wheels, just like your toy car. So, instead of flying, they roll along the runways and taxiways.
When the airplane needs to go to a different spot, like where it will take off or land, it rolls forward on those wheels. It’s like when you roll a ball or push a toy - they’re still moving, but just not in the air!
So, remember this: when airplanes aren't up in the sky, they are rolling on the ground, just like how your toy rolls when you push it!