What makes bubble gum blow big bubbles?

The key ingredient that enables bubble gum to blow big bubbles is gum base. Gum base is a mixture of synthetic and natural ingredients that gives gum its chewy and elastic properties. It is composed of polymers, waxes, and other substances that provide the gum with its ability to stretch and hold its shape.

When you chew bubble gum, the gum base traps air bubbles within its structure. As you blow through the gum, the air becomes trapped and expands, creating a bubble. The elasticity and flexibility of the gum base help to keep the bubble intact and prevent it from popping easily.

Additionally, the presence of surface tension in the gum base also contributes to the formation of big bubbles. Surface tension is the tendency of a liquid to resist an increase in its surface area. In the case of bubble gum, the surface tension of the gum acts as a barrier that helps to keep the bubble from bursting.

In summary, the combination of gum base, trapped air, and surface tension allows bubble gum to blow big bubbles.