This lesson focuses on the diffusion of gas molecules across the cuticle membrane of sea spider legs and the role body size plays in the ability of sea spiders to uptake gases. Students construct model sea spider legs of varying diameters and use them to investigate the relationship between surface area-to-volume ratios and diffusion.
Ice that forms in the polar oceans is an important driver behind the global climate. This ice is physically different from frozen precipitation in a number of different ways. In this brief inquiry activity, students make qualitative observations about two types of ice cubes and deduce ice composition based on their observations. This activity may serve as an introduction to
Biodiversity is a central concept in understanding ecosystem functioning. Students explore how biodiversity is measured, impacted and can shift due to environmental changes to develop their understanding. Based off of the Microbial biogeography studies that Dr. Byron Crump is doing in the Arctic and around the world.
Objectives
* Understand the role and importance of biodiversity in
The report is written by teacher participants upon return from their field expedition portion of the PolarTREC program. It summarizes the benefit of the expedition to the teacher, a description of activities, and a summary of how teachers plan to link this experience in classrooms and communities. This is a public document that will be posted in teacher portfolios and
The Loretto Earth Network News e-pub newletter features a recap of Lauren Watel's expedition to Toolik Field Station. Access the online archive in the LEN News - Summer 2014, page 7.
This data plotting lesson is about temperature changes throughout the atmosphere. The data was collected together with the ozone data in January 2008.
The temperature vs. altitude profile allows students to make conclusions about annual and seasonal temperature changes in the atmosphere up to about 35 kilometers in the stratosphere. The best part of this lesson is using
The website, Ice Stories, features short interviews and other interesting content live from the polar regions. This weblink has a short video interview of PolarTREC teacher, Craig Beals, while taking part in a PolarTREC expedition with Barry Lefer at Summit, Greenland.
Interview with Yuki Takahashi conducted by PolarTREC teacher Elke Bergholz. This interview was conducted during the 2007 South Pole Ozone Changes expedition.
Interview with Teresa Winter conducted by PolarTREC teacher Elke Bergholz. This interview was conducted during the 2007 South Pole Ozone Changes expedition.