This is a 48 slide PowerPoint covering Cnidarians. The first six slides list characteristics of all cnidarians. The rest of the PowerPoint looks at the four major groups of cnidarians: hydrozoans, jellyfish, sea anemones, and coral. It gives interesting information about each of these groups and some stunning photographs. Included are some video suggestions. Terms included are medusas, polyps, nematocysts, symbiotic, and bleaching. You may also be interested in purchasing the note taking guide that students may fill out while viewing the PowerPoint.