As an organism begins to learn more and more about its environment, it will begin to construct a complex mental representation of that data called a Latent map
Cognitive redux
Cognitive map
Latent redux

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.