Lake Level Changes in the Arid West part of Quantitative Skills:Activity Collection
Students use the modeling program STELLA to see what combinations of runoff and evaporation might have lead to Pleistocene lake level oscillations in California's Owens River system.

Daisyworld Lab part of Quantitative Skills:Activity Collection
Students explore a STELLA model of Daisyworld, a self-regulating system incorporating positive and negative feedbacks.

Using Popcorn to Simulate Radioactive Decay part of Quantitative Skills:Activity Collection
Popping popcorn in your class is an excellent way to illustrate both the spontaneity and irreversible change associated with radioactive decay. It helps students to understand the unpredictability of decay.

The Floating Lithosphere - Isostasy part of Quantitative Skills:Activity Collection
Students are asked to numerically and then analytically determine the relations governing the depth of compensation.

Time Series Analysis of Lehigh Valley Instrumental Climate Records part of Quantitative Skills:Activity Collection
In this lab activity the students will learn basic statistical and graph skills by analyzing real world climate data sets.

Understanding a bedload-dominated stream through spreadsheet modeling part of Quantitative Skills:Activity Collection
The purpose of this exercise is to integrate modeling with field data. The activity includes links to a "virtual field trip" of maps and photographs. Data from a creek is included in the field trip and students use an Excel spreadsheet model to analyze the data.

Discharge and Sediment Transport in the Field part of Quantitative Skills:Activity Collection
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.

Viscosity of the Mantle: Constraints from Post-glacial Rebound part of Quantitative Skills:Activity Collection
This laboratory experiment emphasizes the exponential nature of post-glacial rebound and reinforces the relationship between the rate of rebound and the viscosity of the mantle.

Assessing the error of linear and planar field data using Fisher statistics part of Quantitative Skills:Activity Collection
Instruction on use of Fisher statistics to determine the mean and 95% confidence interval of geological vectors, lines or planes, with examples, problems and an Excel spreadsheet for computation.

Continental Crust Mass Balance Calculation part of Quantitative Skills:Activity Collection
A quantitative skills-intensive exercise using data from the Mineral Mountains, Utah, to calculate mass balance and to address the "space problem" involved with emplacing plutons into the crust.