This Web site -- the online companion to the educational television series Science Matters produced by the University of California at San Diego -- is an excellent learning resource for middle and high school students. Focusing on new developments in the biological sciences, Science Matters currently features four programs: Biodiversity in California, Genetics of Flowering, Communication in Bees, and The Code of Life. Each episode comes with an online overview, an extensive essay on why the research is important, and a series of questions designed to help students explore the topic. A detailed answer will appear if you roll the cursor over each question. The Web site and each episode are also available in Spanish.