The Background: I'm looking to put together a 40 minute talk on the group structure of elementary particles for a group of undergraduate mathematics students many of whom know little about group theory - sort of a math talk with a physics flavor (no pun intended). So the talk would include some basic group theory, how elementary particles are described using groups, leading up to the prediction of the Omega-minus. Being an undergraduate myself, I've never formally discussed SU(3) but have taken group theory and know a something about particle physics - so I believe I'm qualified to attack this problem. My intention is not to make a group of particle physicists out of them, but to show a neat example of math that some would describe as "cute but lacking practicality." The Question: Can someone point me to some resources that would be good ways to start researching this topic, focusing on the group theory aspects of it?