Badlands are like a really cool playground made of dirt and rocks! You know how when you play with sand and make sandcastles, sometimes the sand gets all bumpy and lumpy? That's kind of what badlands look like, except bigger and cooler!
Badlands are made when lots of soil and rocks get washed away by rain, wind, and other weather things. This leaves behind little hills and valleys that are all crooked and wavy. They get their name from being hard to move around in, and sometimes, people thought they were "bad" places to be.
But badlands are actually awesome! Because of how they form, they can have some really cool shapes and colors. You can find them all over the world, and some of the most famous ones, like in South Dakota and Alberta, Canada, have really cool rock formations that look like giant castles or even alien landscapes!
So next time you see a bumpy, wavy patch of earth, remember that it's just nature making some really cool playgrounds for us to explore!