![]() It’s the “natural” form to take in still air, you could say. This is because a sphere is a shape with the lowest amount of surface area, which means it takes very little energy to form. As such, a bubble then will pop when it touches your finger because the water molecules are attracted to the dry surface of your finger the water pulls toward your finger and away from the soap molecules, thus breaking their formation… and popping the bubble!Įven if you stretch a bubble out into a unique shape, once it leaves the bubble wand it’s going to become circular… Why do bubbles become circular once in the air? Molecules try to move from areas where there are a lot of the same molecule to where there are less (this is to maintain equilibrium). The reason soap molecules create this kind of arrangement is because of a property where the “head” of the soap molecule is hydro philic (meaning it wants to touch water) and the “tail” of the soap molecule is hydro phobic (meaning it doesn’t want to touch water). This pairing creates a pocket of air in the middle which allows the bubble to form (and to float). ![]() You see, a bubble is a layer of water that is being sandwiched together by two layers of soap. We ask, how are bubbles formed? Why are loose bubbles spherical in the air? Today, we’re getting into the science of bubbles! The Science of Bubbles:Īll you need to make a bubble is soap, water, and air…sounds pretty simple right? But the way bubbles are formed is actually a bit more complicated than that. ![]() Bubbles are something so common that most people have interacted with one either grabbing a bubble wand and creating giant bubbles yourself, making a bubble bath, or encountering a stray bubble (like the one that floats around when washing the dishes).
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