It's a question about water (H20) I filled my glass up with ice and ice is made up of water and I filled it with water to get iced water now that ice is made up of water and it melts in the glass that is already filled with water how come the cup doesn't overflow when the ice cubes melt in a full glass of water can you help?
2006-12-03 08:08:57 · 17 answers · asked by Melody-Lynn 3 in Food & Drink ➔ Non-Alcoholic Drinks
Because ice is full of air, kind of like this question.
2006-12-03 08:54:22 · answer #1 · answered by damsel36 5 · 1⤊ 0⤋
Your glass does not overflow because water expands when it is frozen (This is why a glass bottle filled with water would break if left in the freezer too long.). Conversely, it contracts when it melts, meaning it takes up less space, or volume. Therefore, once the ice cubes melt, the water (including the former ice cubes) in the glass takes up less volume than it did when the water in the glass consisted of both liquid water and ice cubes.
2006-12-03 16:15:11 · answer #2 · answered by i love colleen 2 · 1⤊ 0⤋
The glass does not overflow because the ice takes up volume (space) in the glass. That space is full so when you pour water over the top of the ice there is no room for more water.
When you make ice, there is also oxygen in the ice cubes; they are not solid. So when filling the glass with ice and water the oxygen in the ice will make it so the glass is not filled completely to the rim of the glass.
2006-12-03 16:10:11 · answer #3 · answered by jpbofohio 6 · 2⤊ 1⤋
The volume of frozen water(ice) is more dense that plain water. In other words, the ice made room for itself in the glass before it melted.
2006-12-03 16:14:32 · answer #4 · answered by classic 6 · 1⤊ 0⤋
This is because the ice cubes occupy around the same amount of space the water they are made up of would. Actually they occupy about 10% more of the space as water expands when it freezes.
2006-12-03 16:13:18 · answer #5 · answered by Diet_smartie 4 · 1⤊ 0⤋
When water freezes it expands because the molecules change shape. When your ice melts, it shrinks back to it's original (liquid) size, therefor not spilling out of your glass.
If you want to see if water really expands when it freezes, fill a 20 oz. plastic bottle to about halfway, mark where the water line is, chuck it in the freezer overnight and see where the new line is. It should be noticeably higher.
2006-12-03 16:13:13 · answer #6 · answered by desolationangel 3 · 1⤊ 0⤋
Because the water cannot hold any more molecules of itself (I know that sounded weird... but its true) it will begin to prespire outside of the glass near the bottom, and move up to the sides making the glass wet with the water that could have made the glass overflow
2006-12-03 16:10:45 · answer #7 · answered by Anonymous · 1⤊ 0⤋
Well, if you filled the glass up with ice and then filled it up with wather, then it would be about half and half. And since water expands when if frezzes, then the glass should not overflow.
Well, long story short, water expands when it's frozen.
2006-12-03 16:13:36 · answer #8 · answered by Skippy 5 · 1⤊ 0⤋
Water expands when it freezes (most things contract/shrink when they freeze), so the same amount of frozen water takes up more space than the same amount of liquid water.
If you filled up a cup with water all the way to the very top, and then put that in the freezer, it would expand (and probably break the cup).
2006-12-03 16:14:00 · answer #9 · answered by stevejensen 4 · 1⤊ 0⤋
Because when ice melts it is still the same weight as it was when you put it in....and it actually displaces less water since the air in the middle is gone.
2006-12-03 16:11:42 · answer #10 · answered by dancing_in_the_hail 4 · 1⤊ 0⤋