SmallQuestions
Why do onions make you cry? Onions make you cry because cutting them triggers a chemical reaction that releases an irritating vapor into the air. When that vapor reaches your eyes, it reacts with the moisture on their surface and stimulates nerves that tell your tear glands to produce tears. When asking why do onions […]
Why do bananas turn brown? Bananas brown because ripening and cell damage expose natural compounds to oxygen. Enzymes—especially polyphenol oxidase—help turn those compounds into brown pigments. Ethylene, the fruit’s own ripening hormone, speeds the changes that make a banana softer, sweeter and eventually brown. The brown color does not come from one single process. The […]
Why does popcorn pop? A popcorn kernel pops because heating turns the small amount of water trapped inside it into steam. Pressure builds inside the kernel’s strong outer shell until the shell ruptures. The hot, softened starch inside rapidly expands, cools and sets into the white, fluffy shape we recognize as popcorn. Popcorn is a […]