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
Free community viewing of Taking Earth's Temperature -Delving Into Earth's Past followed by Q & A w/contributor Dr. Jason Briner. Organized by PolarTREC teacher, Tina Ciarametaro in her home community after her expedition to Greenland. Learn more here about the documentary Taking Earth's Temperature.
News release letter for Tina Ciarametaro's expedition to Greenland to study shrinking arctic icecaps. The release explains the upcoming expedition, PolarTREC's goals/objectives and how to follow the expedition.
Density currents drive 3D movements within the world’s oceans that dwarf surface currents by volume. Density-driven movements due to temperature/salinity differences keep the world’s oceans well mixed & help to re-distribute heat from tropical areas towards polar areas. Resultant upwelling creates some of the world’s richest ocean ecosystems. Density movements known as turbidity currents are the world’s largest
Many students are familiar with topographic maps showing relief of land surfaces. In this lab they will produce their own bathymetric maps, the underwater equivalent. A bathymetric map shows sea floor features by contouring depths below sea level (instead of elevation above sea level as in topographic maps). Students will first probe depths in “Mystery Bay”, a box
ALISON combines educational and scientific need by
1. supporting teacher professional development and student learning in the local context through the study of those abundant and familiar materials, snow and ice, that
2. creates scientifically valuable data that document the lake ice and conductive heat flow variability in Alaska, and which can be used for evaluating the performance of numerical