Ice hockey is of course played on ice as the name suggests and there are two teams generally consisting of six players.
They have long sticks which are used to hit or propel a flat disk made of vulcanized rubber also going by the name of flat ball over the ice to the opposite goal net which is guarded by a goalie and the puck has to cross the goal line into the net to score a goal.
This sport involves agility and terrific speed and is very popular as an international sport including the Olympic sports.
According to the Britannica online article cited there are over a million ice hockey players worldwide!