This curriculum unit provides students with real world applications of science as it pertains to toxic releases into the environment. This boxed package contains the Toxics Release Inventory (TRI) Teacher's Guide, TRI Database Basics guide, comprehensive TRI compact disk with user's guide, "Getting Started: A Guide to Bringing Environmental Education into your Classroom," and the Environmental Protection Agency's "Guide to Environmental Issues." Topics covered include identifying a local watershed and airshed, identifying toxic releases in a region, learning more about a toxic chemicals, conservation of mass, water quality monitoring, and bioaccumulation. With this kit, students learn how to collect and describe data, investigate data quality, identify trends in data, apply basic statistical methods to their data, and develop appropriate graphs. (DDR)