BotEC: The Grand Canyon's Rate of Erosion part of Quantitative Skills:Activity Collection
Peter Kresan
Question: Some geologic processes, like volcanism and earthquakes, occur intermittently but can cause significant and sometimes catastrophic change very quickly. Others, like weathering, act continuously but ...

Angle of Repose part of Quantitative Skills:Activity Collection
Eric Baer, Highline Community College
A student activity to determine the angle of repose and what factors determine the angle of repose.

Discharge and Sediment Transport in the Field part of Quantitative Skills:Activity Collection
Jeff Clark, Lawrence University
In this quantitative field activity, students collect field data on channel geometry, flow velocity, and bed materials. Using these data, they apply flow resistance equations and sediment transport relations to estimate the bankfull discharge and to determine if the flow is sufficient to mobilize the bed.

GEOLogic: Dinosaur Trackways part of Quantitative Skills:Activity Collection
Laura Guertin, Penn State Brandywine
Students must associate different dinosaur trackways with their locations and the rock formations containing the trackways based on clues given from various points of view.

Question of the Day: ANWR Drilling Policy part of Quantitative Skills:Activity Collection
Question of the Day developed by William Prothero, University of California, Santa Barbara.
Students analyze the interplay between science and politics on the issue of drilling for oil in the Arctic National Wildlife Refuge.

Weathering of Minerals part of Quantitative Skills:Activity Collection
Wendy Van Norden, harvard-westlake school
Students determine the % change in mass of mineral samples that have been placed in a rock tumbler. They graph the relationship between the hardness of the mineral and the % change in mass. They then consider why some of the mineral samples do not conform the the relationship they graphed. They investigate the physical properties of the outliers and consider how the physical properties contributed to the rate of weathering, and what kind of weathering occured in the rock tumbler.

Stokes' Law Exercise for "Rocks and Minerals" part of Quantitative Skills:Activity Collection
Karen Bartels - Northeastern Illinois University - Chicago, IL
Students in a lab qualitatively "derive" Stokes' Law by timing the settling of various objects through given fluids.