Glass with water on the moon. . .?

Question

If you take a glass of water to the moon and fill it up, would the glass fill with water from the bottom or the top, or would the water just go up in space. . .

Answer 1

The Moon has 1/6 of the Earth's gravity. That being said, it DOES have gravity. The water would fill the glass in the samr way as it would on Earth. Ooh, but yopu know what? No atmosphere. I think it would evaporate. Final answer.

Answer 2

Well, you can answer this with physics, no need to guess.

First, the moon has gravity, so the water will flow into the glass, just a bit slower.

Secondly, the moon has an almost perfect vacuum, so we need to know what happens with the water in vacuum. Let's look at the phase diagram:

http://www.earth.northwestern.edu/people/seth/202/new_2004/H2Ophase.html

This is a sketch of the phases of water at various pressures. As you can see, at pressures below the B-O-A line, water can only exist as a gas. And that is what it is going to do! Since you need to keep the water above freezing point in a pressure vessel to keep it liquid, the moment you open that vessel, the water will start to boil. It will boil in big bubbles while its temperature will continue to fall. The whole thing might look a lot like a soda bottle on a hot day after shaking. Once the temperature has fallen enough, the bubbling will stop and ice will form. If you can manage to get enough water into the glass by that time (it might be challenging!) it will freeze in there and stay solid for a long time if you keep it in the shade where it is extremely cold.

However, that ice will still be in the lower part of the phase diagram, which means that it is not the stable phase, so it has to sublimate. At really low temperatures, this sublimation can take a very long time, which is why we have comets made of ice and why NASA is searching for ice on the moon.

But if you expose your ice to the sun, it will slowly (but visibly) shrink until it is all gone. It will never melt, though because, as we have seen, liquid water can only exist if there is enough pressure.

Answer 3

The gravity on moon is only 1/6 of that of earth's gravity. The gravity is barely strong enough for holding down humans and other rigid stuff. Water being a fluid is no exception. The water would fillup the glass bottom first as on earth but would be rather slow. {You can't expect the glass to fill full}.Water may fill from one side and instead of staying in the glass would come out of the glass.

Ofcourse this would happen only if there was a proper atmosphere on moon. As there is no proper atmosphere the water molecules may diintegrate before reaching the or even touching the glass.

Answer 4

Since the astronauts stood on the Moon(because of gravity) water would pour into the glass also.

Answer 5

Even with small G the water will tend to move in the lower path of the surface, the water will still be in the glass.

Answer 6

AH; Something tells me that the glass would fill from the top down which is opposite of that on earth. The moon is LUNAR.

Answer 7

You couldn't fill the glass at all. As soon as the water is exposed to the lunar environment (..zero air pressure..) it will "boil" off into space.

Answer 8

The water would float away as soon as you squeezed it out of the space ration container

Answer 9

it would go into space unless as ur poring it and the glass is up side down but then it would look like tooth paste

Answer 10

the moon still has gravity, so it would fill up like it does here
......but i think slower cause the moon has only 1/6 the gravity as here