This is a radio interview with WESA (Pittsburgh Public Radio) on "The Confluence" with PolarTREC teacher Mike Penn and Kevin Gavin. Penn's interview starts at approximately 18:05.
Ice that forms in the polar oceans is an important driver behind the global climate. This ice is physically different from frozen precipitation in a number of different ways. In this brief inquiry activity, students make qualitative observations about two types of ice cubes and deduce ice composition based on their observations. This activity may serve as an introduction to