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.
Students will conduct quantitative and qualitative observations on living organisms. By recording careful measurements, making and testing various hypotheses, on super mealworms, students will gain some understanding of how wildlife researchers conduct their studies.
Students learn to take measurements on living organisms and use those measurements to consider the health of the organisms.
Dividing the class into Little auks and predators, students complete survival game for several seasons. After tallying up total volume of food collected, survival rates of the chicks can be graphed and analyzed.
Students will be able to experience the hazards that Little auks must avoid in order to survive. Students will understand the value of