Bad Science

I've been correcting a lot of bad science recently.

Bad Science 1: A friend was worried her husband would get more cavities because he had replaced his frequent Cokes with Kool Aid. She thought Kool Aid was more sugary and worse for his teeth. In reality, the carbonic acid in soda works together with the sugar to cause tooth decay. Additionally, Coke is just as sweet, but the carbonation makes it taste less so. Coke ranks around 2.2 in pH.

Bad Science 2: "I only swim in shallow areas because they are cold and sharks like warm water." I think this girl has lived in both New Jersey and California and thinks that the top layer of water "blankets" the lower water to keep it warm.

Another friend thought a 2-liter soda was the same size as a gallon of milk. I guess it is packaged in a way that makes it look bigger...