Do all frozen things feel equally cold? Melt your mind with this surprising sensory experiment.
At least 4 hours before you want to do this experiment, place an ice cube in a zipper-lock bag, seal the bag (remove as much air as possible), and put the bag in the freezer. Place a 2-tablespoon piece of butter in a second zipper-lock bag, seal the bag (remove as much air as possible), and place that bag in the freezer, too.
Wait at least 4 hours to make sure the butter is fully frozen. While you’re waiting, make a prediction: When you take the ice cube and butter out of the freezer and hold them in your hands: