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Chemistry in Cookies

Updated: Jun 18, 2021

Author: Demi Leng

Editor: Tharindi Jayatilake

Artist: Aurora Chen

What is the first thing that comes to mind when you think of chemistry? The periodic table? Experiments? Explosions? What about baking? Have you ever linked those crispy biscuits or delicious cupcakes with chemistry? It is hard to relate these sweet desserts with this tough subject (well, at least for me). You may be surprised to learn that the secret of turning a dough into a tasty cookie in the oven is all about chemistry.

So what happens in the oven? Before you put the dough in the oven, it isn’t a cake. But when it gets baked in the oven, a chemical reaction will occur and new bonds will be formed. The heat creates these chemical reactions. When it comes to heat, there are two types of reactions to consider: exothermic and endothermic. Exothermic reaction releases heat, and by contrast, endothermic reaction absorbs heat. Your uncooked treat is experiencing a