ANSWERS: 7
  • No. Water is less dense as a solid than as a liquid (that's why ice floats). When it melts, a given mass will have a smaller volume (it will become denser), so the glass will not overflow.
  • It will not overflow, given that the ice is displacing the same volume of water it will occupy when it melts.
  • It will not overflow. Ice takes up more room than water. The volume in the glass will decrease. From Google, "Ice takes up more space than unfrozen, liquid water. The ice in the water displaces the water inside the glass. As the ice melts, that water and the surrounding water move to take up the newly-available space." "Ice is less dense than water. Otherwise it wouldn't float. Water crystallizes into ice such that the water molecules are held farther apart than in liquid water."
  • As water freezes it expands, thus when melted the container will not overflow.
  • No... The ice displaces about the same amount of water frozen as if were NOT frozen. So, as the ice melts, the water from it basically "fills in the space" left by the shrinking ice cube(s).
  • No. Water expands when it turns to ice. If you place an ice cap on a planet with an ocean at the pole, the ocean levels will not rise for the same reason. The only way sea level can change is if ice melts off of a land surface, into the ocean. And that was not happening at the south pole last I checked.
  • The term "ice water" is insufficiently defined. "Ice water" cannot melt, only ice would melt. "Ice water" is an oxymoron because ice is solid and no longer water. Therefore, "ice water" is a non-scientific colloquial term to describe some ice in a cup of cold water. Water is at its densest at 4 celcius. Water freezes to ice at 0 celcius. What is the combination ratio of ice to water? Presuming the water is filled to the brim of the glass. Case A. If glass of water is 4 celcius with a tiny piece of ice (to colloquially qualify it as ice water). The water would overflow not because of melting ice but because of the expansion of fluid water. In fact, the condition of the glass of water "not overflowing" is rather unstable at 4 celcius because the fluid water would expand either way it moves away from 4 celcius. Case B. There is a lot of ice. The water would not overflow.

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