Over 400 4H students arrived at Oregon State University the week of June 23rd. In addition to scheduled activities, each student designed a class schedule based on his or her interests. This year, the Environmental Health Sciences Center offered a 90-minute class entitled “Your Environment, Your Health,” taught by Diana Rohlman, Outreach and Engagement Coordinator. Forty students signed up, with an additional 6 wait-listed. By the end of the class, students were able to identify signal words on chemical labels (caution, warning, toxic, flammable) and discuss appropriate personal protective equipment when using chemicals. In addition, students participated in a hands-on lab activity, performing a dose-response experiment with three different chemicals and radish seeds to understand the relationship between dose and toxicity.