How is rubber made stretchy?
Slinky Molecules
How is rubber made stretchy?
You pull a rubber band between your fingers and it stretches, stretches, stretches — then snaps back to its original size like nothing happened. How does rubber do that? The secret is hidden in the tangled mess inside.
Rubber is made of millions of long, squiggly molecules called polymers — imagine them like cooked spaghetti noodles, all twisted and looped around each other in a messy pile.
