The mantle is a large part of the Earth’s volume and even though it flows over geologic time scales, it is still considered solid. Then there’s the crust and inner core, which are also considered solid. IMO the Earth is closer to a balloon filled with flour and a small iron ball in the center.

I believe this is also related to your question (the pitch drop experiment) but im too sleepy to integrate this to my answer above lol

For a moment I thought this was a character from JoJo’s Bizarre Adventure lol