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Geochemistry Activities

Stream sampling in the Animas River
USGS photo

This collection of activities can be used in geochemistry courses. The collection includes lab exercises, classroom activities, problem sets and more. The materials below are sorted by topic, and may be listed under more than one topic. Help us expand the collection by contributing your favorite teaching activity.



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Results 136 - 144 of 144 matches

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: Isotopic Dating with Parent to Daughter Ratios part of Starting Point-Teaching Entry Level Geoscience:ConcepTests:Examples
The half-life of a radioactive isotope is 500 million years. Scientists testing a rock sample discover that the sample contains three times as many daughter isotopes as parent isotopes. What is the age of the rock? ...

ConcepTest: Calculating Rock Age from Parent Radioactive Isotope part of Starting Point-Teaching Entry Level Geoscience:ConcepTests:Examples
A radioactive (parent) isotope of element X is discovered in different amounts in four rocks (A, B, C, D) of the same composition. Which rock has the oldest calculated age? a. 15% of element X remains in Rock A b. ...

ConcepTest: What percentage of parent isotopes remain? part of Starting Point-Teaching Entry Level Geoscience:ConcepTests:Examples
The half-life of a radioactive isotope is 1,000 million years. Scientists testing a rock sample discover that the ratio of parent and daughter isotopes indicates that the rock is 3,000 million years old. What ...

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

Chemical Equilibrium Misconceptions part of Pedagogy in Action:Library:Mathematical and Statistical Models:Examples
Barry Bickmore, Brigham Young University
This STELLA modeling and writing assignment helps students confront and replace common misconceptions about chemical equilibrium.

From Isotopes to Temperature: Working With A Temperature Equation part of Spreadsheets Across the Curriculum:General Collection:Examples
Dorien McGee
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.

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