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Less dense than the mantle

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Why do continents float high because they are?

Continents float high because they are less dense than the underlying mantle layer of the Earth's crust. This buoyancy allows them to "float" on top of the denser mantle, similar to how ice floats on water.


Why do continents float high relative to the ocean basin?

The continents are thicker and less dense than the materials that make up the ocean basins.


Does Antarctica float?

Antarctica is a continent: continents do not float.


Why do the earths continents float on the liquids mantle of the earth?

The continents "float" on the liquid mantle of the Earth because the metals that make up the mantle are very dense. The continents move when magma is pushed through the crust of the Earth in places like the Mid-Atlantic Ridge. The continents "float" on the liquid mantle of the Earth because the metals that make up the mantle are very dense. The continents move when magma is pushed through the crust of the Earth in places like the Mid-Atlantic Ridge.


Do the seven continents float on water?

No, they float on the mantle, which is made of ultramafic rock softened by intense heat.


How can such heavy things as the continents float?

Continents float because the rock beneath them is denser then the surface rocks The surface rocks are poorer in iron than the deeper layers. The continents are made mostly of silica rich rock, which is less dense than oceanic crust, so when the two come in contact, the oceanic crust sinks beneath the continent.


Did larger continents broke through the oceanic crust?

No, they float on it.


What is nice about the dead sea?

you can float automatically in it because of the high salt content!


Why does a piece of wood does not float on oil?

because have high density than oil


Can this be considered a theorem all ducks can float?

Yes, all ducks float because of their lightweight bones and high body fat content.


How can fossils be found on all continents?

dinos die then they float across the water


Did wind push continents together?

No. The continents 'float' on a huge reservoir of magma - melted rock - and the deep underground/undersea forces push the continents slowly but unstoppably around on the surface of the globe.