What is a molecule?

Check it out! Molecules are like the teeny-tiny LEGO bricks that build everything we see. See that happy little Water Drop? It looks smooth and splashy, right? But if we use this super-cool magnifying glass to Zoom In really, really close, we find a hidden world! Inside the drop are millions of Atoms. Think of these like little round building bits that love to wiggle. But they don't just float away! They're held by a kind of invisible Strong Glue that keeps 'em huggin' tight. When those atoms stick together in a perfect little team, they make one Molecule! It's like a tiny friendship circle that builds the whole world, one splash at a time! Tiny Concepts.