Draw connections between the CAKE and the subjects of physics, chemistry, biology, and maths. Be creative and remember to put down your ANSWERS as comments by MAY 25, 2024. REMEMBER- the best answer gets a SHOUT-OUT on our blog (and our YouTube channel, and wins a gift or a coupon/ gift card). I will REVEAL MY ANSWERS soon, so STAY TUNED, and as always happy LEARNING!
top of page
bottom of page
Mathematics: Imagine you have a cake recipe that makes enough for 8 people, but you need to serve 16. You would use fractions to double the ingredients. If the original recipe calls for 2 cups of flour, you would need 4 cups of flour to serve twice as many people.
Now, if you’re dividing the cake into slices, you can use fractions to describe each slice. If you cut the cake into 8 equal slices, each slice is ⅛th of the whole cake. If someone wants only half a slice, they would be eating 1/16th of the cake.
Using fractions in this way helps us understand how to divide and multiply quantities, whether we’re sharing food or adjusting a recipe. It’s a practical application of math in everyday life.
Chemistry: During the baking process, a myriad of chemical reactions occur that transform the batter into a cake. One of the key reactions is the Maillard reaction, which is responsible for the browning of the cake and the development of flavor. This reaction occurs between reducing sugars and amino acids when exposed to heat. Another crucial reaction is the caramelization of sugars, which happens at high temperatures, further contributing to the flavor and color of the cake. Additionally, the leavening agents in the batter, such as baking soda or baking powder, undergo chemical reactions to produce carbon dioxide gas. This gas forms bubbles within the batter, causing it to rise and giving the cake its light and airy texture.
Physics: The physics of baking a cake involves several principles, including energy conversion and thermodynamics. The oven converts electrical energy into heat energy, which is then transferred to the cake batter through conduction. As the batter absorbs this energy, it undergoes a phase change, with the water content turning into steam, fats melting, and proteins denaturing and coagulating to form the structure of the cake. The expansion of gases within the batter due to heat, explained by Charles’s Law, causes the cake to rise. This law states that the volume of a gas is directly proportional to its temperature, assuming pressure is constant.
Biology :Yeast is a fascinating organism, especially when it comes to its role in baking. It’s a type of fungus that can perform fermentation, which is a metabolic process that converts sugars into other compounds. Here’s a more detailed look at how yeast works during the baking process:
Fermentation Process: When yeast is added to cake batter, it begins to feed on the sugars present. This could be the sugar added to the batter or the natural sugars found in other ingredients like flour. As the yeast consumes these sugars, it undergoes a biological process called fermentation. During fermentation, enzymes within the yeast cells convert the sugars into alcohol (ethanol) and carbon dioxide gas.
Anaerobic Respiration: This fermentation process is a form of anaerobic respiration because it occurs without oxygen. Yeast cells can switch to this type of respiration when oxygen is scarce or absent, which is often the case in the dense environment of a dough or batter.