[Just thinking (OP)]

Could there be more water in the earth than on the surface? Are the continents floating, Is there more voids in the earth than the ocean's capacity.

[Origin]

Are the continents floating

Not on water! 

[Origin]

Could there be more water in the earth than on the surface?

No, not even close.
Take a look at this:  https://www.usgs.gov/special-topic/water-science-school/science/how-much-water-there-earth

[Bored chemist]

Could there be more water in the earth than on the surface?

No, not even close.
Take a look at this:  https://www.usgs.gov/special-topic/water-science-school/science/how-much-water-there-earth

According to that page there is no water in rocks, but in reality, there's quite a lot.
Exactly how much is subject to debate but.
https://www.newscientist.com/article/2133963-theres-as-much-water-in-earths-mantle-as-in-all-the-oceans/

[chiralSPO]

Indeed, as Bored chemist points out, there is a LOT of water in hydrated minerals.

I doubt there are many subterranean oceans (though what do I know), but if even a fraction of a percent of the mantle is "water," that could easily outweigh the glorified salty puddles on the Earth's surface.

[Bored chemist]

It is generally accepted that rocks sink in water (OK; pumice...).
That's pretty much the same as saying that water floats on rock.
So underground bulk water is unstable (though it exists).
An underground "sea" would float to the surface.

[Just thinking (OP)]

Take a look at this:

Very interesting statistics thanks for that link.

[Just thinking (OP)]

Take a look at this:

Very interesting statistics thanks for that link.

An underground "sea" would float to the surface.

I would agree with that or may be squeezed to the surface. Which in turn would mean we would sink.

[Sally Le Page]

I have moved this topic to the Geology board as the Question of the Week board is strictly for questions that will appear on the show.

[Just thinking (OP)]

I have moved this topic to the Geology board as the Question of the Week board is strictly for questions that will appear on the show.

How does one get a question that will appear on the show?

[Colin2B]

How does one get a question that will appear on the show?

If you go to the very top of the forum you will see dropdown ‘get naked’, select ask a question. If it’s interesting it might be picked up.

[Just thinking (OP)]

If you go to the very top of the forum you will see dropdown ‘get naked’, select ask a question. If it’s interesting it might be picked up.

Thank you for that.