1st & 3rd periods at the Creek

In spite of the wet and dreary weather, we managed to make it to Johnston's Mill Preserve on New Hope Creek. This section of woods along the creek is part of the Triangle Land Conservancy. We measured the pH, water and air temperature, phosphate, nitrite, and nitrate levels as well as collected aquatic invertebrates. We used a field guide to identify the creatures we found and to determine which ones were pollution tolerant and which ones were not. Tomorrow 2nd period will venture out to do more of the same.