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.
Humans hold special relationships with the natural resources by which they are surrounded. These connections are increasingly being challenged by changing climate patterns, availability of resources, and societal changes. In this activity students will investigate the cultural importance of an Arctic plant or animal. Each student will create a carving and research traditional uses, geographic range, and natural history
Case studies provide a brief overview or examination of events that impact or alter the way people function and live day to day within the human and physical environment. They help by providing students with “real world” examples that relate to the theoretical content they are studying.
Objective
Students will prepare a case study illustrating the impact