There's a buffet of energy options available to society - and like any good buffet, we've got some healthy options and some not-so-healthy ones. We call them renewable and non-renewable energy resources. Let's dive in!

Definition: These are the energy resources that cannot be restocked at the same pace we're taking them. Think of them like your favorite cookie jar - once you've eaten all the cookies, it takes a while to bake more (or if you're anything like me, convince someone else to bake more!). Examples here are oil and coal.

Alias: These bad boys are also known as fossil fuels.

Sustainability?: No way, José! Their use is unsustainable because once we've eaten all the cookies, it's tough to bake more, especially when the oven is Mother Nature.

Real-World Example: Imagine that you have a bank account (Let's call it Fossil Fuels Bank) where you've stored all the money you've earned from years of summer jobs. If you keep withdrawing from it without putting anything back in, eventually you're going to run out of money. That's exactly how fossil fuels work!