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.
Local news interviews PolarTREC teacher Nell Herrmann about her expedition to Palmer Station, Antarctica. The take a visit to her classroom as well. Video and written article are included.
PolarTREC teacher Juan Botella is interview by a local news station about his work on the NB Palmer. Juan discusses ocean circulation and changes affecting marine organisms. Video and article included.
The Dry Valleys region in Antarctica is known as the coldest, windiest, driest place on Earth. Beacon Valley is famous for its katabatic winds which can routinely knock fit adults and PolarTREC teachers to the ground. This lesson was created by PolarTREC teacher Jacquelyn Hams who experienced the cold and the full force of the winds in 2008