Okay, kiddo, so you know how we live in a big world with lots of different places? Regional science is all about studying those different places and how they work.
Let's say you live in a city like New York. You might have noticed that some parts of the city have really big skyscrapers, while other parts have smaller buildings and houses. Regional science would study why that is. Maybe there's more money to build big buildings in certain parts of the city, or maybe certain types of businesses prefer to be located in certain areas.
Regional science isn't just about cities, though. It also looks at things like different regions of a country. For example, some parts of the US are really good for farming because of the climate and soil, while other parts are better for manufacturing because there are more factories and transportation options.
So, basically, regional science is all about understanding why different places are the way they are, so that we can learn how to make them better and make the most of what each region has to offer!