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. Students will then see how postglacial rebound is an important factor when assessing the
PolarTREC teachers Steve Kirsche and Adeena Teres presented to a group of teachers from around the state of Florida. This is the presentation that they gave at the 2017 Florida Association of Science Teachers (FAST) Statewide Conference on 20 October.
This lesson is intended to introduce students to the concept of using ice core samples to learn about the past. Students will be “collecting” a sample from a model of ice. They will then evaluate the sample to see how the layers change as the depth changes.
Objectives
At the completion of this lesson, students will gain a greater
PolarTREC teacher Steve Kirsche, researcher Ian Baker and graduate student Eric Wagner discuss the research and life in the field as part of the PolarTREC expedition “Dynamic Observations of the Microstructural Evolution of Firn” based out of Summit Station, Greenland.
Students will use marshmallows to simulate toxins in the environment. Concentrations of these toxins will be modeled and calculated as they bioaccumulate up the food chain. Methylmercury and POPs are substances that bioaccumulate in the Arctic food chain. OASIS scientists studied these in Barrow, Alaska. (See Ocean Atmosphere Sea Ice and Snow (OASIS) Project at www.polartrec.com)
Students will discover how a simple action such as turning on a television will lead to toxins in our food supply. Many of these toxins concentrate in the Arctic because of long-range transport of pollutants in the atmosphere. Scientists in the OASIS project (http://www.polartrec.com/ocean-atmosphere-sea-ice-and-snowpack-interactions) study these pollutants in the Arctic. Students will learn about actions that they can take to
This Live from IPY! event was held with PolarTREC teacher, Betsy Wilkening and University of California Davis researcher, Harry Beine who are studying the interactions between snow, atmosphere, ice sheets, and the ocean in Barrow, Alaska.