On a bright spring day last year, high school environmental science students led third graders on a dynamic learning adventure as part of an annual Outdoor Ecology School. At a water-monitoring site in a nearby national forest, the elementary students rotated through a series of inquiry-based activities that involved conducting field research and scavenger hunts, discovering animal habitats, studying population growth, and exploring predator-prey relationships. Community members and parents who dropped by were treated to an enthusiastic flurry of activities and learning.