Biostratigraphy for fun and profit part of Oceanography:Activities
David Watkins, University of Nebraska at Lincoln
Students use the evolutionary distribution of oceanic phytoplankton fossils to date the age of pelagic and hemipelagic sedimentary rocks. They correlate this section to another as an exercise in oil prospecting.

Geologic Time Scale CogSketch geoscience worksheet part of Introductory Courses:Activities
Bridget Garnier
Sketching activity that uses a sketch-understanding program, CogSketch. This worksheet has students build the geologic time scale by adding events on increasing larger scales, from 1 million years to 4.56 billion ...

Calculating the radius of the Earth part of Integrate:Workshops and Webinars:Teaching the Methods of Geoscience:Activities
Basil Tikoff, University of Wisconsin-Madison
Science students often have difficulty thinking about large spatial scales. The purpose of the exercise is to redo Eratosthenes' calculation of the radius of the Earth using data from to sites in ancient Egypt. The excercise teaches about the methodology of science - how Eratothenes figured it out - rather than worried about what the "right" answer is. It can also be used to discuss the role of models in geological thinking.

Sea level change part of Oceanography:Activities
Lauren Sahl, Maine Maritime Academy
Students calculate sea level change due to melting ice caps, thermal expansion and changes in ridge spreading rates.