Hey, There's Corn in My Candy! *
|Time Required||Short (2-5 days)|
|Material Availability||Readily available|
|Cost||Very Low (under $20)|
|Safety||This science fair project requires adult help. The boiling sugar solution is extremely hot.|
AbstractIf you browse through a candy cookbook, you might notice that many of the recipes call for corn syrup in addition to sugar. Both sugar and corn syrup are sweet, so why do you need corn syrup if you already have sugar? In candy making, corn syrup is known as an interfering agent. But what does this mean and how does it work? You can find out for yourself by making two batches of rock candy, one with corn syrup and one without. For example, you could alter the science project When Science is Sweet: Growing Rock Candy Crystals by replacing 1 tablespoon (tbsp) of water (in the sugar-water solution) with 1 tbsp of corn syrup in one of the batches of rock candy. (Make sure the batches are prepared the same in every other way.) Are there any differences between the two rock candy batches? Once you understand what an interfering agent is, you could try experimenting with other ingredients to see if they can act as interfering agents, too.
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Last edit date: 2017-07-28
- Science Buddies. (2013, January 10). When Science is Sweet: Growing Rock Candy Crystals. Retrieved March 21, 2014, from http://www.sciencebuddies.org/science-fair-projects/project_ideas/FoodSci_p005.shtml
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