This extensive collection of activities from the American Museum of Natural History offers middle school students "an exciting and creative context for involving students in the scientific process while introducing them to the rich diversity and beauty of their local ecosystem." Lesson plans, Web-based interactive activities, useful Web links, profiles of AMNH scientists and staff, and other features help students inventory and analyze the plants and arthropods found in their own neighborhoods. All activities address national science standards, and have been "field tested" in schools around the nation. Biodiversity Counts even has students develop their own exhibitions for their findings -- a great way to build science communication skills.