Curated OER
A Simple Viscosity Test
Fourth graders experiment with the viscosity of different liquids. They use a stopwatch to time the a steel ball as it drops through different liquids.
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Leeds University: Teaching Resources in Structural Geology
A large collection of resources for teaching structural geology. Information is sorted into topic headings, including basic principles of organization, basic structures (folds, faults, shear zones), virtual field trips, strain, geology...