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.
The intertidal zone is a region where the dynamic patterns of motion, driven by tidal forces, create a unique environment of alternating water and air, shaping the spatial relationships and patterns of more/less/equal that define this zone.
External reference — all senses of the word “intertidal zone” on Wiktionary. This atlas concept maps to only the slice of meaning relevant to the prerequisite graph.