Definition: An allotrope of oxygen (symbol O₃) having three atoms in the molecule instead of the usual two; it is a blue gas, generated from oxygen by electrical discharge.

Alright class, settle down, let’s take a look today, At something called “ozone,” and brighten your way! The dictionary tells us, clear as can be, It's an allotrope of oxygen, you see. Now "allotrope" means different forms, it's true, Like carbon forming graphite or diamond anew! This ozone is special, a triplet so bright, With three oxygen atoms, shining with light! (Think of it like this: O + O + O = O₃) It’s a blue gas, you'll notice its hue, Created by sparks and discharges, fresh and new. Electricity zings, a powerful display, And ozone appears in a wonderful way! So remember, class, don't be afraid to explore, Ozone is oxygen – three atoms galore! Do you have any questions about this curious gas? Let’s discuss!