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.
POLENET (The Polar Earth Observing Network) is a global network dedicated to observing the polar regions in a changing world.
The project is focused on collecting GPS and seismic data from autonomous systems deployed at remote sites spanning much of the Antarctic and Greenland ice sheets. GPS and seismic measurements together provide a means to answer critical questions about ice
This information is a resource on everything Antarctica created by 3 students in a Thinkquest project, collaborating internationally - Oliver Strebel, Robert Merki and Ho Lik Man.