Perhaps the most famous events of the Winter Olympics come in the alpine skiing, with the downhill and slalom events.
Downhill basically involves getting from the top of a mountain to the bottom as quickly as possibly, while getting round a series of fairly well spaced out gates.
Slalom is a little different as the gates are much closer together, testing the skiers' ability to twist and turn at pace.
There is also a slalom on a much longer course called a Giant Slalom and an even longer event called the Super G - or Super Giant Slalom.
There is another event that combines the two, imaginatively called the combined event, with skiers doing one downhill run and two slaloms.