Definition: A synthetic, solid, hydrocarbon-based polymer, whether thermoplastic or thermosetting.
Alright class, settle down, let’s take a look! Today we’re tackling the word “plastic,” it’s quite a trick, Because it's more than just toys, you see, quick! The dictionary’s right, and wants to set the scene, Let’s break this down, so clear and keen. “Synthetic” means it wasn't born of nature’s grace, But made in a lab, at a measured pace. "Solid" is key - it holds its form with might, Not like a liquid, flowing light! “Hydrocarbon-based,” that’s the building block you see, Made from carbon and hydrogen – chemistry for me! And then we have "polymer," a long chain, quite grand, Like many tiny links, throughout the land… or rather, in this strand! Now, “thermoplastic” or “thermosetting,” don’t you fret, Just know they're types – one can be melted yet! (Thermoplastic) The other sets hard, a permanent state, it’s true, (Thermosetting) Like glue, that sticks for me and you. So, in short, "plastic" is a man-made thing, A sturdy substance, with a scientific swing! Do you have any questions? Don't be shy, let’s explore, Understanding “plastic” – it’s really quite a score!