Ice cream floats are delicious and simple to make: Just add some ice cream on top of soda, like root beer, and voila -- you get a creamy, refreshing drink that foams, fizzes, and mesmerizes.
When the ice cream melts, the liquid ice cream fills up the air pockets. When it refreezes, there are fewer air pockets, so the ice cream is less airy and fluffy. The other reason is that when the ice ...