i hear some people say the ice bergs are melting, causing ocean level to rise. my question is, why is it when you have a glass of ice water, and the ice melts, the glass doesn't over flow?
lol because i think the volume of the ice transfers making no change but do this.. take a water bottle fill it to the top freeze... then let it thaw out.the bottle will be expanded, and will over flow.
Cause the ice displaces the water as soon as you put it in. If you were to stake ice cubes over the rim of the glass, Aslo, If you froze a cubic foot of water, it would become larger as a cubic foot of ice. Which begs the question, Well if the ice melts, shouldnt the oceans shrink?....
thats what i was thinking. but if you watch that movie "the day after tomorow", the scientist says due to the polar caps melting the ocean level got higher.
This is an ongoing theory that many scientists are trying to prove/disprove. You are correct, floating ice displaces the same amount of volume as melted ice. But they aren't talking about the ice that is in the water, they are talking about the massive "ice shelves" that are being melted by global warming and are sliding into the ocean, displacing volume and causing the sea level to rise. Even a few inches in certain oceans will be catastrophic.
Well, here goes. If an Iceberg, Not a shelf, an Iceberg is submerced in the ocean, and it is 90% under water, 10% out of the water, shouldnt the iceberg acually displace more water as a solid then a liquid? And when it melts, have a smaller volume footprint in the ocean?
If you have 1 gallon of frozen water, put it into a tub and fill it with 9 gallons of water so that the water is just at tubs rim, but not overflowing. Now as the ice melts from a solid to a liquid wont the waterlevel go down, because water expands as it freezes, hence taking up more space.
Technically molecules contract when frozen and expand when heated. This is why if you put water in ice trays and feeze it for a long time the cube would have shrank. Now melting ice caps would cause that water to expand not to mention the rate of evaporation would rise causing mass flooding via rain/storms, etc and effectively overflowing moving water banks..Fact..Polo.
I wouldn't think so. If all the ice is submersed...it should stay the same if it's already displaced it. If some isn't submersed and it surpasses the volume equivalent of water...then it will rise.
^^^ LOL! While I agree, all they basically did was expand on what I initially said, which was:
This is an ongoing theory that many scientists are trying to prove/disprove. You are correct, floating ice displaces the same amount of volume as melted ice. But they aren't talking about the ice that is in the water, they are talking about the massive "ice shelves" that are being melted by global warming and are sliding into the ocean, displacing volume and causing the sea level to rise. Even a few inches in certain oceans will be catastrophic.
