Does anyone know what a bubble is?
A bubble is air surrounded by a wall of water. Every bubble I make has three layers. Two layers of bubble solution with a layer of water in between. Water has surface tension. Surface tension is what holds that bubble together and it also pulls it into a sphere. That perfectly round shape is the most efficient shape possible because it has the least amount of surface area of any possible shape.
Where do you find bubbles?
In a lake? In a stream? In your sink or a toilet? Bathtub? Puddle?
How about in bread? Are bubbles what make bread light and fluffy?
Soda? How do those bubbles get there?