How is continental crust different from oceanic crust?

 Continental crust is less dense than oceanic crust.

Because the continental crust is less dense than the oceanic crust, it floats higher on the mantle. just like a piece of styrofoam floats higher on water than a piece of wood does. The mantle, oceanic crust and continental crust have different densities because they are made of different kinds of rock with different densities.

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