Symbiosis is a fascinating interaction of organisms. In this activity, students learn about three symbiotic associations. Each student is given a card with the name of an organism. They then move about the classroom searching for the other half of their association. When they find their symbiotic partner, they locate a pictorial card that explains the relationship and share this information with the rest of the class. Developed by Dawn Kessler. Includes instructions and materials for 32 students. Grades 6–12.