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.
Silk is a fine cloth material produced by an animal, where the animal's ability to produce silk is a result of its biological processes and the material properties of the silk are a result of its molecular structure.
External reference — all senses of the word “Silk Fabric” on Wiktionary. This atlas concept maps to only the slice of meaning relevant to the prerequisite graph.