This Wiki defines resources as the items that can be found in the world. These items cannot be crafted. Resources include Mined Resources, the products of Plants, such as Logs, Corn, or Aloe Vera Leaf, and other items found in the world.
Products of Plants
Products of Animals
For a full list, click here.
Materials are items that are crafted but can also be used up to craft new items. Unlike Tools, materials are Materials include all intermediate items, such as Raw Glass, Yarn, Steel Plates, and many others.