This lesson is intended to help students make connections to polar science while discovering how and why sea ice drives deep ocean currents. Students will also learn key terminology related to sea ice and using actual salinity content charts, will graph a typical sea ice core’s salinity as it relates to depth.
This lesson was created by 2017 PolarTREC teacher Steve Kirsche who took part in the Dynamic Observations of the Microstructural Evolution of Firn expedition. The lesson is intended to introduce students to the concepts of isostasy and postglacial rebound through a demonstration and related instruction.
To begin the process of educating my students on my upcoming expedition to Antarctica, I introduced an activity entitled, “Questions about Antarctica…It’s What’s for Dinner.” In this assignment, small groups were asked to develop a list of 10 questions about anything - weather, clothing, wildlife, geography, geology, oceanography - related to Antarctica.
There is a plausible explanation for how carbon dioxide molecules could interact with water molecules thereby forming a solution where the carbon dioxide is the solute and water is the solvent (as it usually is).
When a bottle or can of carbonated beverage is opened the carbon dioxide is allowed gas to come out of solution. This is because there is a pressure differential between the carbon dioxide in the liquid and carbon dioxide in the air. The pressure in the liquid is higher than the pressure in the air so the carbon dioxide moves from high to low.
PolarTREC, the teacher-research program run through ARCUS (Arctic Research Consortium of the United States) and the National Science Foundation is a transformative, inspirational, and highly valuable experience for science teachers.
A little over 1 year ago, I received a phone call that changed my life. I had been selected to become a PolarTREC Teacher and would be heading to Antarctica in the fall of 2017. Words cannot adequately describe the joy and excitement I had in that moment.