From YouTube: How Do They Put the Centers in Chocolates? is one of a series of short and snappy videos that reveal the mysteries behind how everyday things happen. Each of these fascinating little videos is without words. Ideal for teachers, How Do They... ? works across the curriculup. And the videos answer questions kids often ask! How Do They... ? How Do They Put the Centers in Chocolates? takes us on a visit to the factory to see the nuts and bolts (and cocoa!) of how these sweet treats are made.