English: Video showing the sublimation of dry ice on the surface of water. The beaker on the left contains water. The beaker on the right contains pellets of dry ice (solid carbon dioxide, aka "card ice" or "cardice"). A small pellet of dry ice is placed on the surface of the water and begins to sublime, releasing cold gaseous carbon dioxide that causes water vapour in the air to condense. The release of gaseous carbon dioxide causes the pellet to move (whiz) on the surface of the water until the pellet is eventually completely sublimed. A larger version of this file can be found here