Results 121 - 135 of 147 matches
Using Popcorn to Simulate Radioactive Decay part of Quantitative Skills:Activity Collection
Jennifer Wenner, University of Wisconsin-Oshkosh
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.
Using Data to Teach Earth ProcessesAn Illustrated Community Discussion at the 2003 Annual Meeting of the Geological Society of America part of Cutting Edge:Data, Simulations and Models:Workshop 03:Activities
Robert F. Dymek Washington University
Robert F. Dymek Washington University - Students learn how to prepare samples for XRF analysis by collecting samples in the field and going through each step of the process in order to obtain analyical results. -
Zoned Plagioclase Exercise part of Cutting Edge:Courses:Petrology:Teaching Examples
R. K. Smith
The purpose of this exercise is to: become familiar with the various types of zoning found to occur in plagioclase feldspars, be able to recognize and identify the various zoning types, and be able to interpret the ...
Differentiation and Discrimination of Big Bend Ranch State Park Igneous Rocks part of Cutting Edge:Courses:Petrology:Teaching Examples
Linda Davis, Austin Community College
I give the students analyses from work that I did with Chris Henry on the Bofecillos Mountains and the Solitario. (Tertiary Volcanism of the Bofecillos Mountains and Big Bend Ranch State Park, Texas: Revised ...
Rock Samples and Geochemistry Analyses part of Activities
Maria Rosa Lourdes, Bahia Federal University
We will emphasize the importance of rock sampling and preparation for geochemistry analyses.
Teaching Geoscience with Video Snips part of Cutting Edge:Enhance Your Teaching:Videos:Activities
Scott Brande, University of Alabama at Birmingham (UAB)
Video snips are short video segments of live footage of geologic processes (settling sand, cleaving minerals, or landslides) used to engage students, foster discussion, and stimulate higher order thinking skills. ...
Periodic Table of the Elements Activity part of Activities
Laura Wetzel, Eckerd College
Students work in groups to create the Periodic Table of the Elements in class using cards that they completed as homework. This is meant as a review of the Periodic Table and a direct illustration of how Dmitri ...
Modeling U-Series Concordia/Discordia Using STELLA part of Rates and Time:GSA Activity Posters
Kirsten Menking, Vassar College
U-Series dating techniques are widely used to determine the absolute ages of some of Earth's oldest rocks, but the concordia/discordia diagram can be quite difficult for students to grasp. I have produced a STELLA-based lab exercise to develop students' understanding of this important chronologic technique. Students create models of the two isotopic decay systems and run these models to create the concordia diagram. They then carry out experiments in which they "add" or "remove" varying amounts of lead or uranium in simulation of metamorphism. In the course of the lab, students are introduced to the concepts of exponential decay and secular equilibrium as well as modeling concepts such as the creation of if-then statements.
Monitoring Lead in an Urban Community Garden part of Cutting Edge:Enhance Your Teaching:Service Learning:Activities
Jennifer Latimer, Indiana State University
Each spring, students in a 300-level field course collect samples from urban community gardens to monitor soil lead concentrations.
From Isotopes to Temperature: Working With A Temperature Equation part of Spreadsheets Across the Curriculum:General Collection:Examples
Spreadsheets Across the Curriculum module. Students build a spreadsheet to examine from a dataset the relation between oxygen isotopes in corals and the temperature of surrounding seawater.
ConcepTest: Einsteinium Half-life part of Starting Point-Teaching Entry Level Geoscience:ConcepTests:Examples
The isotope Einsteinium-253 has a half-life of 20 days. If you began an experiment with an 80-gram sample of Einsteinium-253, how much would remain after 60 days? a. 60 grams b. 40 grams c. 20 grams d. 10 grams
ConcepTest: Oldest Rock Dating #1 part of Starting Point-Teaching Entry Level Geoscience:ConcepTests:Examples
The world's oldest known rock is approximately 4 billion (4,000 million) years old. What are the approximate relative percentages of parent and daughter isotopes for Uranium-238 and Lead-206 (half-life = 4.5 ...
ConcepTest: Oldest Rock Dating #2 part of Starting Point-Teaching Entry Level Geoscience:ConcepTests:Examples
The world's oldest known rock is approximately 4 billion (4,000 million) years old. What are the approximate relative percentages of parent (Uranium-235) and daughter (Lead-207) isotopes? The half-life of 235U ...
ConcepTest: Radioactive Decay part of Starting Point-Teaching Entry Level Geoscience:ConcepTests:Examples
If radioactive decay began with 400,000 parent atoms, how many would be left after 3 half lives? a. 200,000 b. 100,000 c. 50,000 d. 25,000
ConcepTest: Isotope Mass and Atomic Number part of Starting Point-Teaching Entry Level Geoscience:ConcepTests:Examples
The isotope of element X has 15 protons, 17 neutrons, and 15 electrons. The element has an atomic number of ____ and a mass number of ____. a. 15; 32 b. 17; 15 c. 17; 47 d. 15; 30