This paper deals with some scientific approaches to curling. Curling is a winter sport called chess on ice. Players slide stones on a sheet of ice towards a target area. A stone is delivered with a gentle rotation, and then the stone curves in response to the rotation direction. The purpose of this game is to control the stone and obtain a higher score. There are still many aspects to analyze about curling, such as why a stone turns, how it curves, where it should be delivered at, how to develop several strategies, and so on. In order to find them, scientific approaches are necessary as well as intuitions and experiences. In these approaches, measurement, robotics, artificial intelligence, and information processing are included.