Curated OER
Eutrophication Lab
Middle schoolers examine the effects of detergents and fertilizers on aquatic life and describe algae. Students define the term eutrophication as the process by which a body of water, such as a pond, lake, stream, or river, has a sudden...
Curated OER
Determination of Phosphates
Learners engage in a laboratory lesson in order to increase understanding of the impact of phosphates at the chemical and ecological levels. The lab exercise is completed with the goal of getting them to predict the outcomes and future...
Curated OER
Water Quality and Nitrates & Phosphates
Young scholars examine the effects of nitrates and phosphates on the dissolved oxygen levels in different water sources. For this series of 3 lessons, they consider the reasons for nitrate and phosphate level increases and their effects...