I once found a geography book about Scandinavia, and each country got a title like this.
Sweden is known for its massive forests that seem to never end, and they have the biggest lakes in Scandinavia. Heck, one lake is even as big as the Danish island Zealand. They take good care to preserve the forests, so every time they cut a tree down, and new is planted.
Youll have to dig a long way down to find rock in Denmark. Its impossible to get more than 50 kilometres away from the sea and compared to the size of the country, Denmark has one of the longest coastlines in the world. Tourists mainly come here for the nice beaches.
In this song one of the lines go, If they ask us where we live, we tell them, Where the salt grows [link]
Because the country is so flat, it's also very windy.
Norway, a country almost made entirely of mountains. Try looking at pictures from Norwegian nature. You will be hard pressed to find a single one without at least three mountains in the back. It has of course had a big influence on a the Norwegians lives, even down to what they eat, and they have some of the most expensive vegetables youll find. The mountains also have a bad tendensy to "hold onto" clouds, which results in a lot of rain.
EDIT: Finland isn't part of Scandinavia. Finland is part of Fennoscandinavia and the Nordics.