This activity was prepared by David Walker (LASA High School) and Rose Cory (University of Michigan), based on work conducted at Toolik Field Station in Alaska. The purpose is to introduce students to Van Krevelen diagrams, which are used to interpret results of high resolution mass spectrometry and characterize the compound classes present in complex organic mixtures. Students will
The work of professor Bryon Crump, graduate student Natasha Christman, and PolarTREC teacher David Walker is highlighted in the weekly newsletter of the Oregon State University College of Earth, Ocean, and Atmospheric Sciences (On the Horizon).
KUT (Austin's NPR Station) news report (video, article, and radio) on PolarTREC teacher David Walker's Carbon in the Arctic expedition. The story aired on Morning Edition and Texas Standard in late-September, 2019.
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). The weak inter-molecular attractive forces rely on the polarity of the water molecule and the high density of electrons at either end of the
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
The following PowerPoint presentation is part of an anticipatory set used to excite and introduce students to the many wonders of the Bering Sea. The PowerPoint is to be presented at the beginning of a unit about the Bering Sea.
Objectives
At the start of a unit on the Bering Sea this PowerPoint video presentation will engage
Arizona Daily Sun article about Jillian Worssam's PolarTREC experience on the USCGC Healy in the Bering Sea. Article created from journal excerpts, and was published on 3 August 2008.