In a soap bubble what you get is a film where you have 2 layers of soap molecules sandwiching a thin layer of water. This strange arrangement comes about because soap molecules are amphiphilic - they have a hydrophilic part (a polar head) and a hydrophobic part (a nonpolar, fatty tail). They arrange themselves so that their tails face the air (inside or outside the bubble) in order to allow as many heads as possible to hang out with the water. And this kinda insulates the water so that it doesn’t evaporate and “burst your bubble” and it limits the stickiness between the water molecules so the bubble doesn’t just “implode”  
 
As a result, if you blow into a film of soapy water you can get bubbles. But you can’t blow them too big because the surface tension holding the film together can get overwhelmed by the vapor pressure inside the bubble caused by the gas molecules banging on the walls of the bubble as they try to escape. Plus some of the water can evaporate. So all the bubbles eventually burst. But hopefully not before you’ve gotten a look at the pretty colors appearing in the film thanks to water getting deflected from both layers of soap and the deflected light waves interacting and canceling some wavelengths out

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