The easiest way to separate a mixture
of sugar and water is to use distillation,
a process that separates substances
based on their different boiling points.
Sugar does not boil, but the point
at which it crystallizes (320 degrees
Fahrenheit) is much higher than the
boiling point of water (212 degrees
Fahrenheit), so when you boil a mixture
of sugar and water, the water turns to
steam and leaves the sugar behind.
You can collect the steam to capture
the water, effectively separating the
sugar and water. If you are keen to learn
more about distillation, evaporation and
crystallization, this process, involves all
three.