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Investigation: When will there no longer be glaciers in Glacier National Park?
An Investigation Question activity developed by Carol Ormand, Wittenberg University.
Students use historical data on the extent of the Grinnell Glacier in Glacier National Park to estimate when the glacier will melt completely.
A basic trilobite morphometric exercise
John Taylor, Indiana University of Pennsylvania-Main Campus
A lab exercise and follow-up classroom activity in which students measure some trilobite specimens, evaluate the statistical significance of differences documented in data acquired for two different populations, ...
Is There a Trend in Hurricane Number or Intensity?
Todd Ellis, SUNY College at Oneonta
This lab guides students through an examination of the hurricane record to determine if there is a trend in hurricane intensity over the past 40 years and introduces some issues related to statistics and ...
Estimating Exchange Rates of Water in Embayments using Simple Budget Equations.
Keith Sverdrup, University of Wisconsin-Milwaukee
Simple budgets may be used to estimate the exchange of water in embayments that capitalize on the concept of steady state and conservation principals. This is especially true for bays that experience a significant exchange of freshwater. This exchange of freshwater may reduce the average salt concentration in the bay compared to seawater if it involves addition of freshwater from rivers, R, and/or precipitation, P. Alternatively, it may increase the average salt concentration in the bay compared to seawater if there is relatively little river input and high evaporation, E. Since freshwater input changes the salt concentration in the bay, and salt is a conservative material, it is possible to combine two steady state budgets for a bay, one for salt and one for water, to solve for the magnitude of the water flows that enter and exit the bay mouth. Students will make actual calculations for the inflow and outflow of water to Puget Sound, Washington and the Mediterranean Sea and compare them to actual measured values.
Radioactive Decay and Geochronology
Kirsten Menking, Vassar College
Students create a STELLA model of the radioactive decay process.
How Do We Estimate Magma Viscosity?
SSAC Physical Volcanology module. Students build a spreadsheet to examine how magma viscosity varies with temperature, fraction of crystals, and water content using the non-Arrhenian VFT model.
Bubbles in Magmas
Module by Chuck Connor, University of South Florida, Tampa. This cover page by Ali Furmall, USF, now at U. Oregon.
SSAC Physical Volcanology module. Students build a spreadsheet and apply the ideal gas law to model the velocity of a bubble rising in a viscous magma.
Porosity and Permeability of Magmas
SSAC Physical Volcanology module. Students build a spreadsheet for an iterative calculation to find volume of bubbles and hence porosity, permeability and gas escape as a function of depth.
What is the Volume of the 1992 Eruption of Cerro Negro Volcano, Nicaragua?
SSAC Physical Volcanology module. Students build a spreadsheet to calculate the volume a tephra deposit using an exponential-thinning model.
What is the Relationship between Lava Flow Length and Effusion Rate at Mt Etna?
SSAC Physical Volcanology module. Students use Excel to determine a log-log relationship for flow length vs effusion rate and compare it with a theoretical expression for the maximum flow length.