Definition: The smallest particle of a specific element or compound that retains the chemical properties of that element or compound; two or more atoms held together by chemical bonds.

Alright class, settle down, let’s take a look! Today we’re diving into something really tiny – molecules . Now, you've read the dictionary definition, and it’s pretty accurate, but let’s break it down with a little rhyme to help it stick in your minds: “A molecule is small, don't you see? The tiniest piece for you and me! It’s built from atoms, bound so tight, Holding on fast with chemical light!” Let's unpack that a bit. Think of it like this: Elements & Compounds: You know those building blocks – like hydrogen (H), oxygen (O) or water (H₂O)? These are elements and compounds. Atoms Held Together: Molecules are formed when two or more atoms stick together . They do this because they want to be stable, and they share electrons through what we call 'chemical bonds.' It’s like LEGO bricks snapping together! Retain Properties: And here's the key – a molecule of water (H₂O) still behaves like water. It can flow, it can boil, it can dissolve things, just like any other water you see around you. That's because it’s made up of those same hydrogen and oxygen atoms in that specific arrangement. Essentially, a molecule is the smallest unit of a substance that keeps all its characteristic qualities. Do you have any questions about this? Don't be shy – let's explore these tiny building blocks together! Are there any parts of the definition that are still a little fuzzy for you?