Did you know that you can stick your hand through a bubble without popping it? All you have to do is make sure your hand is covered in soap.
Soap molecules bond to each other, so putting a soapy hand through a bubble won't pop it -- but if you put a dry hand inside it will pop immediately. Anything that fractures the thin layer of water molecules can cause a bubble to burst.
Bubbles are an incredible natural phenomenon that demonstrate a lot about physics, geometry, and math.
Bubbles will always revert to a spherical shape since the liquid shell of a bubble constantly tugs inward due to surface tension. The water molecules try to minimize the surface area of the bubble. A sphere is the shape with the least amount of surface area while containing volume.
Check out the video above to see what a soap bubble looks like when it pops in slow motion.