What is outcrop?

An outcrop is like a piece of Earth’s skin that we can see and touch.

Imagine you're playing outside, and you dig in the dirt with your shovel, suddenly, you find a big, colorful rock or a layer of sand right next to the ground. That’s an outcrop: it’s part of something deep underground that has come up to the surface so we can see it.

Think of Earth as a giant cake baked inside and out. Usually, you only see the top, like the frosting. But sometimes, the cake pops out on the side, and you can see layers of different flavors, that’s just like an outcrop.

Outcrops are important because they help scientists understand what's inside Earth without digging all the way down. It’s like when your friend shows you a cool toy from under their bed, you get to see what's hidden without moving everything!