Slime will slowly flow making it seem like a liquid, but it can also bounce which makes it seem a bit like a solid. The glue has long flexible molecules in it called polymers. These polymer molecules ...

When enough polymer molecules get hooked together in the right way, the glue solution changes from being very liquidy to a ...

These substances often form into a chain. Glue is also a type of polymers. A solution of glue with borax and water produces a slimy material that is elastic enough to clump up to make a smile.