foam insulation
Ice melts slower
you suck
It has a thicker consistency. :)
Slower
in a block of ice the ice is packed more closely together causing it to melt slower. Just like when you make a snowman, even after all the snow on the ground has melted the snowman still remains.
No it melts slower
The square cube would melt slower because it has fewer faces and verticies than an octagon which create a weakness.
Yes it does
That depends on the shape of the ice, how cold it starts out and the condition of the surroundings. All other variables being the same, a block of ice starting at 0 °C will take less time to melt than one that starts at -100 °. Ice in an oven at 250 °C will melt faster than one sitting on the table in a 25 °C room. If the surroundings are maintained at - 50 °C, it will NEVER melt (although it might sublime). A block of ice 1 ft x 1 ft x ft will probably melt slower than one that is 6 inches x 6 inches x 4 feet, yet they are both "a cubic foot". Ice sitting on a plank of wood and surrounded by air at 50 °C will melt slower than the same block of ice dropped into liquid water at 50 °C. A block of ice will melt slower in the shade than if it is moved into the sunlight. Ice floating quietly in water will melt slower than if the water is swirling around it. Ice will melt slower in still air melts slower than ice with a wind blowing across it. A cubic foot of ice as one contiguous block will melt slower than if you take that same block and break it up in pieces. You have to be very specific about the conditions in order to make it possible to answer the question. For example: "A block of ice 1 ft x 1 ft x 1 ft initially at a uniform 0 °C floating in an unstirred vat of pure water which is maintained at a constant 45 °C"
Ice melts at a standard rate proportional to itself, so if all ice pops are the same size they will melt at the same rate. However if some brands have wider ice pops than others, they will melt slower.
The freezing point of water is lower with added salts; the heat of solution is released.
If the coffee is hot, it'll melt the ice quickly. If it's room temperature, the ice will still melt. Ice will melt in any situation where its surroundings are at a warmer temperature than itself.