Definition: An enclosure within which workers, prisoners, or soldiers are confined

Alright class, settle down, let’s take a look! That definition of “compound” – an enclosure for those in need to be contained – is a bit misleading, you see. It’s not quite the whole story, truly! Let’s think about it like this: “Compound” comes from Latin roots, you see, "Com-" meaning "together," and “pondus,” which means “weight” or “quantity.” In science, a compound is something quite different, my friends. It's not a jail, don’t you fret! A compound is when two or more elements combine , Like hydrogen and oxygen, forming water, divine! Or sodium and chlorine, making salt so bright, These are all compounds – a fascinating sight! Think of it like building blocks, you see? Little pieces joined as one. It's about chemical combinations, not physical confinement, don’t you run! Does that make the meaning clearer now for you? Now, who can give me an example of a compound we use every day? Let’s hear your thoughts!

Definition: A unit of mass equal to 16 avoirdupois ounces (= 453.592 37 g). Today this value is the most common meaning of "pound" as a unit of weight.

Alright class, settle down and let’s take a look! Today we're tackling “pounds,” a word that might seem quite small, But understanding it is crucial, standing tall! The dictionary tells us, with a helpful plea, That "pounds" are units of mass, you see! It’s linked to ounces – sixteen in the mix, And roughly forty-five and a half sticks (of weight!) - that's what they fix. (453.592 37 grams, if you want to be precise!) Now, "avoirdupois" is a term you might find, Meaning it’s used for measuring things of kind – Like groceries and goods, both big and small, That's the most common way we use them all! So, when you hear “pounds” on a scale or chart, Remember this meaning, right from the start. It measures weight , it’s true, don’t you see? Any questions bubbling up for me? Let's discuss with glee!