Ice hockey, known simply as hockey in North America and parts of Europe, is a team sport played on ice skates, usually on an ice skating rink with lines and markings specific to the sport. It belongs to a family of sports called hockey. The two opposing teams score by using their sticks to control and advance a vulcanized rubber hockey puck, and then shooting it into the net of the other team. Each goal is worth one point. The team with the highest score after an hour of gameplay, broken down into three 20-minute periods, is declared the winner; ties are broken in overtime or a shootout. In a formal game, each team has six skaters on the ice at a time, barring any penalties, including a goaltender. It is a full contact game and one of the more physically demanding team sports.
