Well, little buddy, Pampas are big, wide grassy plains in South America. Think of them like a really big park where there's a lot of grass that goes on forever and ever.
There are lots of different animals that live in the Pampas like cows and horses and even some really cool birds like flamingos and owls.
People also live on the Pampas and they use the grass to help them make things like blankets and clothes and even to feed their animals.
But, sometimes people can take too much grass which can make the Pampas not as healthy, so it's important that everyone treats the Pampas with respect and only takes what they need.