Beakman explains what polymers are and mentions the various materials around us that are made of polymers. He explains that the materials are all different because of the way in which the monomers are linked together. Then they create a DIY slime with borax, which is a type of polymer.
Sal puts all of the polymers in his shop on sale, which means just about every item has been discounted. He mentions the different types of polymers that exist and illustrates that they are more than plastics.