Students use topographic map skills to interpret impact of the May 18, 1980 eruption of Mount St. Helens on the volcano's topography, and draw profile views of Mount St. Helens before and after the May 18, 1980, eruption.

Students describe in words and graphic displays the elevation or depression profile of sections of Mars' Olympus Mons and/or Valles Marineris. They explain how orbiting spacecraft build up global maps one data slice at a time.

Fourth graders plot points on a graph, connect the dots to make the ocean floor profile and label the topographical features. They utilize a worksheet and a website imbedded in this plan to plot the ocean floor.