Put the jar in the safe, quiet spot and check it after 2 weeks. Try shining a flash light through the jar onto the crystals to see them glitter. When the cloudy mixture of sugar and water cooled and sat for 2 weeks, it leaves sugar crystals on the string, the top and the bottom of the glass. When sugar dissolves in the water, it doesn't really disappear. Actually, it breaks up into tiny sugar molecules that is too small for your eyes.
Hot water holds more sugar than cold water.
So when the sugar water cools, it can't hold as much sugar as hot water, and some of the sugar forms crystals on the string. Homepage Last modified on Tuesday 8th October 1996. Copyright 1996 Singapore Polytechnic Project.