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
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
In this one hour webinar, PolarTREC teacher Nick LaFave conducts live event for students and the public on his work at Toolik Field Station studying Predatory Spiders with researcher Amanda Koltz.
In the field with Michael Sheriff of the Institute of Arctic Biology, University of Alaska Fairbanks. Tagging squirrels near the Atigun River, North Slope, Alaska. Video by Nick LaFave.
In this one hour webinar, PolarTREC teacher Nick LaFave conducts professional development for teachers on his work at Toolik Field Station studying Predatory Spiders with researcher Amanda Koltz.