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In this science fair project you will make a saturated solution of sugar and water in order to grow your own rock candy sugar crystals. You will compare the rate of growth between rock candy that is left to nucleate on its own in the solution, and rock candy that starts off with some assistance.
Rock candy is a very simple hard candy made by allowing a supersaturated sugar syrup to evaporate slowly (sometimes for up to a week), during which time the sugar crystallizes into chunks. The crystals can be formed around any rough surface; strings or small sticks are most commonly used. Food color can be added to create a wide variety of interesting crystals. Crystal Formation occurs when.
Rock candy or sugar candy (in British English), also called rock sugar, is a type of confection composed of relatively large sugar crystals. This candy is formed by allowing a supersaturated solution of sugar and water to crystallize onto a surface suitable for crystal nucleation, such as a string, stick, or plain granulated sugar. Heating the water before adding the sugar allows more sugar to.
To figure this out, I’ll start with a statement that I can test — a hypothesis. My hypothesis is that using a lower ratio of sugar to water in my solution will produce less rock candy than a mixture with a high-sugar concentration. Cooking candy. To test this hypothesis, I made three batches of rock candy. The first batch is my control.
Here’s the sweet sweet science behind rock candy: if you could look at a grain of sugar way close up, you’d see a crystal made up of three kinds of molecules: fructose, glucose, and sucrose. When you dissolve sugar in water, those molecules get pulled apart because they’re attracted to the water molecules. When you make rock candy, you mix together a whole lot of sugar and a little bit.
You made a super-saturated solution of sugar and water! The sugar crystals could only stay dissolved whilst the water was hot. Cooling the solution down made it super-saturated, which is unstable.As the water cooled down, less of the sugar crystals could remain in the water and so they began to settle out onto the kebab stick, which effectively acted as a seeding crystal.
Free Essays on Rock Candy Experiment Essay. Search. How sugars effect rock candy. Figure 2. The string in this photo has been tied to a skewer and weighted down with a screw on the other end. It is ready to be used to make rock candy. Lower the weighted end of the seeded string into one of the jars and rest the skewer across the mouth of the jar. Roll the skewer to wind. Save Paper; 6 Page.