Does an ice cube float higher in salt water or fresh water? Explain?
106254
higher When a body floats in a liquid it has to displace an amount of liquid equal to its own weight. Therefore, a body floats "higher" in a denser liquid because the volume of the denser liquid displaced - which is equal to the volume of the submerged portion of the body - will be less than the volume of the less dense liquid displaced Salt water is denser than water
134404
Salt decrease the melting point of water so adding salt to ice wich is fresh water will make it melt at a lower temperature than 0 celsious.
913425
When the ice was floating on water, the water had lifted by certain level..tht level was equal to the weight of the ice..s when the ice melts , the water level wont increase since the water from icemelt is equal to the earlier weight of the ice ...and the water on which ice was floating had already risen to accomadate tht weight..so it wont rise again when the ice melts...
524116
Thanks to the wonderful nature of the water molecule, ice is the only product in nature that actually expands as it cools. Once water gets to be less than 4 degrees C, its crystalline nature takes over and the molecules start to line up and push each other apart. This is why ice floats on water. The colder the ice, the less dense it becomes, the higher it floats. EXPERIMENT: Take a thin glass and fill it halfway with water. Mark the level of the water with a grease pencil. Put the glass in a cold refrigerator. The water level will go down. Now put the same glass in the freezer overnight. The water level will go up. The colder the freezer, the higher it will go.
832904
The melted ice cube does affect the water level. Global warming is causing the sea level to rise because the polar ice caps are melting and adding to the amount of liquid in the sea.
1083390
The water around an iceberg or floe becomes colder than freezing (like putting ice cubes in a drink), but won't turn to ice since it is salty.  And waters in the polar regions are down near freezing to begin with.  When the berg gets sunlight some of the surface will melt off.  When the berg finally drifts to warmer waters, it will melt until it is gone.\n\nFor an example: Take a sink and fill it with water.  Put in some rock salts and stir until dissolved.  Now put in several trays' worth of ice cubes.  Stir.  Some of the cubes will melt since the tap water was not freezing, but eventually the sink water will get to a temperature below 32 degrees F or 0 degrees C without freezing solid.  At that point the coldness of the water keeps the remaining ice cubes frozen and the ice cubes keep the water at a below freezing temp.  Eventually it will melt cause there will be heat absorption into the system raising the water temperature, but it will take awhile.
427084
The density of water is greatly affected by salinity, or the salt concentration.  When salts are dissolved into pure water, the density of water increases because the salts have a greater density than the water; thus freshwater floats on salt water.  This is also why your ability to float differs between a swimming pool and an ocean.
23033
If you were able to get the salt solution cold enough, it would freeze. However, if you put two ice trays side by side, one filled with water, the other filled with salt water, and chilled them to the point where both froze, the would both be the same temperature. However, once the cold was taken away, the salt solution would melt at a much lower temperature than the water only cubes.\n\nWhat salt does when added to water is decrease the temperature at which water will freeze -- as well as melt. How much the freezing/melting point is lowered depends on how much salt is added. The higher the concentration, the lower the freezing/melting point.
288935
Fresh water freezes when the temperature of the water is 32*F and the pressure is normal atmospheric pressure. And then, if there is a heat loss for that fresh water, then it would freeze at lower pressures also. \nIf ice is at 32*F and there is a heat gain, it would melt at 32*F. Also, if at 32*F with no heat flow there is higher pressure, then ice would melt. (eg skiing. If you put your pressure on the skis, the ice/snow melts and becomes water so that you can ski)
449704
Water is water. The density of ice water is 1000 kg/m^3. It isn't floating is it? Then it must not be below 1000.
557600
Water is one of the few substances that expands as it freezes.  From 4 degrees Celsius down to 0 degrees water expands and as a result the frozen solid form is less dense than the liquid form and that is why ice floats.\nThe water in the soft drink expands and the can cannot hold the increase in volume.
260171
It isn't air! When water freezes all dissolved gases & other matter are not included!!! \n\nThe hydrogen bonds that form when water freezes creates an open structure. There is simply nothing in between those spaces.\n\nWe are talking about molecular structure, things at this level are so tiny that even thinking about what is in between is silly.\n\nIf there is anything between the spaces it is probably interstitial water molecules (those not hydrogen bonded inside the crystalline lattice structure - think of them as loose molecules of water).\n\nIce floats on water because it has expanded. That is all. Not because of what is in between the "spaces".\n\nSee, when you increase the surface area but have the same number of molecules present, you cause the object to become less dense. (it's less tightly packed...things that are tightly packed for their size are said to be more dense.)
190514
Density of matter is the reason anything floats.  Any object that displaces its own weight will float. Salt water raises the density of water. Consequently any object will float easier in salt water because it only has to displace little weight compared to non salt water
865673
For similar reasons why ice bergs float - it has to do with buoyancy and and density and displacement of water and what happens to the molecules when water freezes.  It is a bit difficult to explain it in sixth grade terms.  These sites may help you.
279658
Ice floats on water because it is less dense than water, meaning it has fewer molecules per volume. This is because of the Hydrogen bonds. In fact, while other substances contract when solidified, water expands. That's why it's less dense, and not because it has air inside. Furthermore, when the temperature decreases and reaches 4 degrees Celsius, every water molecule is Hydrogen-bonded to 4 other molecules near it. Then, they form into a crystal lattice structure, and it holds them further apart.
297006
A boat intended for salt water can be used in fresh water, but its load capacity is reduced because fresh water is less dense than salt water (so, for a given load, the boat floats lower).  Generally, craft intended for fresh water should not be used in salt water because metal parts that are not intended for exposure to salt spray will corrode.
241990
The real answer to this question is that that pure water is colorless both when it is liquid and is solid. The reason why all the ice cubes you see are white is that you don't have pure water. Liquids have the ability to dissolve a certain amount of gas, so the water you drink usually has a number of inert gasses dissolved in it. However, as temperature decreases, the ability of a liquid to dissolve gasses decreases and the gasses come out of solution. Now when you're making ice cubes, the top of the water usually freezes first, so all the gas that comes out of solution is trapped within the cubes, and is seen as the white color you're used to seeing. If you want clear ice cubes, try boiling your water first to remove the majority of impurities, and then freeze it. It should come out clear.