Concentric crater fill

Okay kiddo, do you know what a crater is? It's basically a big hole in the ground, usually made when something crashes into the planet. Now, imagine that hole gets filled up with other stuff like rocks and debris. That's called crater fill!

Now, sometimes the crater fill has a special pattern called concentric. That means it's arranged in circles that get smaller towards the center of the crater, like rings on a bullseye board. This happens when different layers of rock or soil get pushed up or collapse inward during the impact that made the crater.

So basically, concentric crater fill is when a crater gets filled up with stuff arranged in circles, caused by the way the impact affected the ground! Cool, huh?