December 3, 2004: Hour One: Mars Water / Drug Safety
December 3, 2004: Hour Two: Science Books / Books and Toys for Kids
December 10, 2004: Hour One: Steroids in Sports / Budget for Science
December 10, 2004: Hour Two: Marie Curie / Listener Letters
December 17, 2004: Hour One: News Roundup: Ice Cores / Heart Treatment / Teaching Math
December 17, 2004: Hour Two: Sensing Fear / 50th Anniversary of Organ Transplantation
December 24, 2004: Hour One: New Galaxies / Christmas Cooking Chemistry
December 24, 2004: Hour Two: Inventing / Celiac Disease
December 31, 2004: Hour One: 2004 Year In Review
December 31, 2004: Hour Two: Tsunami Science / Birding