E: 23/08 Win £100 sainsbury voucher Tw

priorslee

Ditto - long time since school!!

But I think it's decrease - the ice would have a smaller volume after it's melted.

Thinking the other way round, when pipes freeze, this is because the ice has expanded.

The 9yo looking over my shoulder also says this is right!!

camsmom

I've just Googled it and it says it would overflow :eek:

createbeauty

This says stay the same?
http://answers.yahoo.com/question/index?qid=20090602190830AAAM3P6

and here:
http://www.physicsforums.com/showthread.php?t=589141

Gbear0382

The top link you posted actually seems equally inconsistent!

createbeauty

I went with the chosen answer in the top link as it had a wiki source for buoyancy.

I went with the answer on the physics forum... I'm hoping they know what they're talking about, lol.

Nicky63

From a logical point of view............... I think it would decrease because when you put the ice in the glass it has gaps around each cube where they don't quite fit together, therefore when they melt they will "fill the gaps" so to speak.

That's my genius for the day, well probably the year actually :rotfl:

Actually no scratch that, there's orange juice in there isn't there! doh!

Ah well back to the gardening then

createbeauty

I'm tempted to grab my pint glass and fill it with ice and water to find out! Maybe I should record the results as well...

But thinking "logically" ....
If you put water into an ice tray and freeze it... the ice is the same size as the water that was put into the ice cube tray. If you leave the ice to melt, it shouldn't change? lol

Edit: So far half my ice has melted and it hasn't changed how much water is in my pint glass.

EverDecreasingCircles

Based on their wording "Decrease - weirdly" I'm going for that.

ETA: Although I think they're wrong

EDC x

jeddentad

createbeauty wrote: »

I went with the chosen answer in the top link as it had a wiki source for buoyancy.

I went with the answer on the physics forum... I'm hoping they know what they're talking about, lol.

Aye, what I got from that was

Water expands when it freezes, so if it melts it should take up less volume.

BUT

when ice is in a liquid like water or juice, it's floating, and displacing it's volume. So when the ice melts, there should be no change in the overall volume in the glass.

IF

instead the ice was totally and completely submerged by being attached to the bottom of the glass somehow, then the level of the liquid would fall as the ice melted.

createbeauty

Just visited my glass and it looks like it might have gone down slightly ... but I can't tell if the water that is now on my counter top is from condensation or from overflow, lmao.