In this lesson, students further their knowledge of redox titrations while examining the pressures that contamination and climate change put on access to clean water.

Step 1 - Inquire: Students observe a field scientist testing the dissolved oxygen content of the Hudson River and generate questions. 

Step 2 - Investigate: Students apply the Winkler Method as a tool for assessing the health of bodies of water and identify the stresses placed on water sources by climate change. 

Step 3 - Inspire: Students explore Sustainable Development Goal #6 and consider what steps they can take to protect the drinking water in their communities.