The document contains links to various resources about chestnuts including a website about the Castanyada celebration in Catalonia where chestnuts are eaten, an educational website about chestnut trees, a YouTube video about chestnuts, a website with activities about chestnuts, a song about chestnuts, an audio recording of a traditional song about chestnuts, another YouTube video about chestnuts, and a story about a chestnut tree and an educational website with an activity to make chestnut shapes.