April, 2013 – Colegio Internacional Puerto La Cruz, Venezuela
Students explored issues related to water quality and biodiversity on a trip to a local river. Students tested dissolved oxygen, turbidity, pH, temperature, flow rate, nitrates, phosphorus and fecal coliform. They used their data to analyze the quality of the stream and it’s ability to support life. They examined the runoff area of the river to make predictions about influences on water quality.
Students also used kick-nets to take a macro-invertebrate sampling back to their school laboratory. There, they investigated the biodiversity of the river and used the presence or absence of indicator species to determine stream quality.