I am currently reading a textbook and I am slightly confused at a paragraph that deals with some general facts about earth's outer shape.
It mentions that the density of the continental crust is less than the density of the oceanic crust. Then it concludes (somehow?) that the continental lithospheres weigh less than the oceanic lithospheres. Using this then, it says that the continental lithospheres are "floating more up" on the asthenosphere than the oceanic lithospheres. And then it continues with other facts.
I feel like there's something missing here. I understand that the denser material will sink in more. But how does this affect earth's outer shape? I mean sure, it means that the continental crust will appear more higher than the oceanic, but I fail to see this. All pictures I have seen don't show this clearly. Could someone maybe explain this in more detail with an appropriate image or animation?