In this lesson, students will conduct an investigation to discover how the behavior of hermit crabs change as water temperature changes.
Goals
Students will understand and practice the steps of a science investigation through an investigation about hermit crabs’ reaction to changing ocean temperature. Students will understand that as ocean temperatures increase some animals will adapt and some will
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.