Each concept here is mapped to its prerequisites — the ideas you'd need first to understand it — all the way down to four foundations: Space, Time, Energy, Pattern. Click any prerequisite to drill down, or scroll for the chain graph.
A puddle forms on the ground surface where water collects in a depression, building upon the properties of water as a substance that requires element and matter, and rain as a process that requires cloud, geology, and water.
External reference — all senses of the word “Puddle” on Wiktionary. This atlas concept maps to only the slice of meaning relevant to the prerequisite graph.