In this activity students devise a way of graphically plotting the density variations vs. depth in the Earth. They recreate spreadsheets, shown in the Powerpoint module, with formulas that answer various pieces of the overall question. This module is the sixth in a series of six that examine the density of planets and rocks, and was designed for an undergraduate class where students are asked to look at geological questions mathematically and may spend more time on the math than on the geology. The site includes teaching notes and tips, and links to teaching materials and additional resources.
