The San Diego Natural History Museum (SDNHM) has recently added a downloadable Teacher's Guide to its Web site for Glow: Living Lights -- "the first-ever museum exhibition to explore the phenomenon of bioluminescence." The 48-page Teacher's Guide is loaded with great lesson plans for grades 3-6. The activities may be used without a visit to the actual exhibit, although the Teacher's Guide also includes useful material for those lucky enough to make the trip. Glow: Living Lights "is an excellent platform for a number of scientific disciplines, including chemistry, biology, ecology, and oceanography." In addition to the Teacher's Guide, this Web site provides a fun, general guide to bioluminescence geared toward kids, which includes games, quick facts, a glossary, and related Web links.