Imagine you live in a big house with lots of people, and you all have to agree on how to do things like what to eat for dinner or what TV show to watch. But sometimes, some people in the house want something different than others, and they might not be able to agree.
This is like Scotland and the rest of the United Kingdom. Scotland is a country within the UK, but sometimes the Scottish people want different things than the people in the rest of the UK.
Some Scottish people think that they should have their own country and be completely independent from the UK. This is called Yes Scotland. They want to make their own decisions about things like taxes, healthcare, and education.
But some people in Scotland don't think that's a good idea. They think that it's better for Scotland to stay part of the UK and work together with the other countries in it. This is called No Scotland.
It's like a big decision for the Scottish people, just like when you and your housemates have to decide on something important.