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What happens when you push a balloon full of air into a body of water, that's in space? (slrpnk.net)

submitted 4 days ago by [email protected] to c/askscience

11 comments fedilink hide all child comments

My 8-year-old son asked this question and i couldn't give him a definite answer. So he's wondering if it would do the same thing as a balloon pushed underwater in the bathtub (which kind of makes sense to me, due to the density differences, not just gravity alone).

But I told him I'd ask those more knowledgeable than me.

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[–] [email protected] 12 points 3 days ago (1 children)

Depends on if the kid meant "in space" or "on something like the space station".

Kids being kids, he probably literally meant space, not realizing the implications of water (possibly) becoming gaseous from lack of pressure (I assume?).

For that age, it would be a good learning experience to explain in a spaceship vs in space - just not the triple point of water, or the different ices, etc.

[–] [email protected] 1 points 3 days ago

Not realizing the implications, he probably meant "in zero gravity".