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Invertebrate Biodiversity and Abiotic FactorsUnderstanding the relationships between biotic diversity and abiotic factors in an ecosystem can be a difficult task. Using soil invertebrates, students can identify both the number of species present in a soil sample and the number of individuals within a species. View »
Snakeheads Invade the United StatesTeach your students about the challenges nonnative species pose by focusing on a current example, the northern snakehead fish. Native to China, Russia, and Korea, this fish has established breeding populations in several states. Find out how this might have happened and what scientists are doing about it. View »
Plant Biodiversity Field ActivityThis field activity introduces students to biodiversity through the study of plants and animals in a designated area. But here’s the twist—instead of using a quadrat to designate the area of study, students use a Hula Hoop® instead. View »
Make a Hay InfusionHay infusions are widely used as a source of microorganisms for studying decomposition, fermentation, and disease. And preparing one is easy--simply soak fresh or dried plant material in water. View »
Pill Bug Behavior ChoicesThis introductory investigation into animal behavior uses pill bugs and choice chambers. Students begin with an experiment to test how pill bugs respond to humidity and can go on to design an inquiry to test another environmental factor. View »
Biodiversity of Soil AnimalsIn this lab, students use a Berlese funnel to take samples of soil-dwelling animals, and then compare the numbers and kinds of organisms collected from different habitats. View »
Altering Carrying Capacity by Changing Environmental FactorsThis is a scenario-based activity in which students must use bacterial growth data to determine the carrying capacity of an “ideal” growing medium and then determine how two different treatments affect the growth and carrying capacity of the medium. View »
Introduction to Feeding Preferences in Caenorhabditis elegansThe nonparasitic soil nematode Caenorhabditis elegans has served as a model organism for research scientists since the 1960s. This lab introduces students to the organism and provides them with the tools necessary to perform simple experiments. View »