Definition: A flammable liquid ranging in color from clear to very dark brown and black, consisting mainly of hydrocarbons, occurring naturally in deposits under the Earth's surface

Alright class, settle down, let’s dive on in, To understand a word, let’s truly begin! We’ve got "petroleum" here, a tricky name to see, Let’s break it down for you, just listen carefully! The dictionary gives us clues, quite clear and bright, “A flammable liquid… shining with light!” Now “flammable” means it burns – so be aware, It's got the potential, a fiery affair. And "liquid" is its state, you see, Like oil upon the water, flowing free! The colors vary, from clear and bright, To shades of brown and black, a wondrous sight. “Hydrocarbons” are the key, you understand? These molecules of carbon, hand in hand! They’re formed deep down beneath the ground we tread, "Occurring naturally," it's safely said. So "petroleum" is simply, put quite plain, A natural oil deposit, again and again! Does that make sense to you? Any questions now? Let’s discuss!