This lesson is designed to introduce students to impacts of human activity on the health of watersheds. Both point source and non-point source pollution will be investigated and used to evaluate the health of the Chesapeake Bay and the James River. Finally, students will be asked to consider ways the human impact can be modified to improve water quality and bivalve habitat.

Video Description:  Our Earth is a dynamic system with diverse subsystems that interact in complex ways.What are those subsystems and how do they interact?How are these subsystems and the global Earth system changing?What causes these changes?How does NASA monitor these changes?How can Earth system science provide societal benefit?Jessica Taylor, an atmospheric scientist at NASA Langley Research Center, and Dr. Steven Pawson, an Earth scientist from NASA Goddard Space Flight Center, help answer these questions and demonstrate how mathematical modeling helps scientists in their predictions of climate, weather, and natural hazards.  Video Length:  5:02.NASA eClips Real World segments (grades 6-8) connect classroom mathematics to 21st Century careers and innovations.  They are designed for students to develop an appreciation for mathematics through real-world problem solving.

This activity introduces puts participants in the role of agricultural workers in a fresh produce operation that grows crops in a hydroponic system to sell at grocery stores. As they grow their crops over the course of several weeks, they are responsible for ensuring that the products are safe, delicious, and ready to sell to customers. This activity is part of the Agricultural Cyberbiosecurity Education Resource Collection that contains resources for formal and non-formal agricultural educators working with middle school aged youth. Published as Open Educational Resources, all resources are provided in durable (pdf) and customizable (MS Word) formats. They are hosted on  GoOpenVA in a unique resource collection, Ag Cybersecurity Virginia Tech, at https://goopenva.org/curated-collections/143 and on on Virginia Tech’s stable repository, VTechWorks at https://doi.org/10.21061/cyberbiosecurity