Sugar Rock Candy
Grow edible sugar crystals on a stick from a saturated syrup — sweet science you can eat.
Start building ↓The build
Boil the syrup
Dissolve lots of sugar in hot water until saturated.
Seed the stick
Dip a skewer in syrup, roll in sugar, and dry it.
Suspend it
Lower the seeded stick into the cooled syrup.
Wait days
Crystals grow larger over a week.
As the saturated syrup slowly evaporates and cools, sugar molecules leave solution and attach to the seeded stick in a growing crystal.
A closer look
Crystallisation from a supersaturated solution builds an ordered sugar lattice — same idea as borax crystals, but edible.
Variables to test
- 1 Compare seeded vs unseeded sticks for growth.
- 2 Add colour/flavour — does it change crystal size?
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