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How to make a sugar candy at home
Kids will love this experiment! It’s the most delicious experiment for growingcrystals.
Safetyprecautions
Observe safety rules when working with heatingdevices.
Warning! Only under adults supervision.
Reagents andequipment:
- saucepan;
- sugar;
- water;
- bamboosticks;
- glass;
- food coloring (anykind);
- foil;
- paperclamp;
- fryingpan.
Step-by-stepinstructions
Prepare the seed for crystals: add sugar and water to a frying pan in the ratio of 10:1 and heat until the sugar dissolves completely. Pour the thick syrup into a bowl and dip the bamboo sticks in it, then sprinkle plenty of sugar on them, so it sticks. Leave to dry for a fewhours.
Prepare the solution to grow the crystals: add sugarand water to a saucepan in the ratio of 3:1 and heat slowly until the sugardissolves completely. Leave the syrup on the hot plate to cool for 15-20minutes. Pour the cooled syrup into glasses and add food coloring.
Immerse the sticks vertically in the center of each glass of syrup. They must not touch thebottom of the glass, or the walls! Cover with foil and leave in a dark place.Two weeks later beautiful sugar crystals will grow on thesticks.
Processesdescription
At room temperature (25 °С, 77 °F), the solubility ofsugar in water is around 200 g/100 g of water. When heated, the solubility ofsugar increases and more of it dissolves in water. When cooled, the solutionbecomes oversaturated, i.e. more of the substance is dissolved at the giventemperature. As a result, the “surplus substance” precipitates in the form of crystals, and the solution once more becomes saturated. To grow large sugar crystals, a seed for crystallization in the form of a stick is required. Two weeks later the sugar grains turn into acandy.
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