Why does the earths crust float on the mantle?

Because it's less dense than the mantle rock.

The density of mantle material is greater than that of crustal material. Also tectonic plates actually include a little upper portion of the mantle which rides on top of a, for lack of a better term, "Juicy" layer of the mantle known as the asthenosphere which is about 1% liquid allowing for "flow" of the plates over top.

crust is lighter in density than mantle , like oil is lighter than water thats why it floats on water, when earth formed all lighter elements came up and made crust

can u see my question?? just one look??


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