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Examples of Teaching with Demonstrations


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Demonstration of radioactive decay using pennies part of Quantitative Skills:Activity Collection
A demonstration (with full class participation) to illustrate radioactive decay by flipping coins. Shows students visually the concepts of exponential decay, half-life and randomness. Works best in large classes – the more people, the better.

Subject: Geoscience: Geoscience:Geology:Geochemistry:Radioisotopes, Geoscience:Geology:Historical Geology

Copper Extraction Demonstration Tutorial part of Starting Point-Teaching Entry Level Geoscience:Interactive Lecture Demonstrations:Examples
Summary This demonstration uses sulfuric acid and crushed copper ore (malachite) to produce a solution of copper sulfate and carbonic acid in a beaker. When a freshly sanded nail is dropped into the copper sulfate ...

Subject: Geoscience: Geoscience:Geology:Mineralogy:Systematic Mineralogy:Native Elements, Environmental Science:Waste:Toxic and Hazardous Wastes:Metals, Environmental Science:Mineral Resources:Mining, Geoscience:Geology:Geochemistry:Aqueous Solutions, Geoscience:Geology:Mineralogy:Systematic Mineralogy:Oxides and Hydroxides

Magma Viscosity Demos part of Pedagogy in Action:Library:Interactive Lectures:Examples
This is an interactive lecture where students answer questions about demonstrations shown in several movie files. They learn to connect what they have learned about molecules, phases of matter, silicate crystal structures, and igneous rock classification with magma viscosity, and to connect magma viscosity with volcano explosiveness and morphology.

Subject: Geoscience: Geoscience:Geology:Igneous and Metamorphic Petrology:Igneous Associations and Tectonic Settings, Igneous Processes, Igneous Rocks, Geoscience:Geology:Igneous and Metamorphic Petrology, Environmental Science:Natural Hazards:Volcanism, Geoscience, :Geology:Igneous and Metamorphic Petrology:Volcanology, Geoscience:Geology:Tectonics

Slinky and Waves part of Starting Point-Teaching Entry Level Geoscience:Interactive Lecture Demonstrations:Examples
Use a Slinky to show:P and S waves, Wave reflection, and Standing waves in interactive lecture demonstration. -

Subject: Geoscience: Physics:Oscillations & Waves:Wave Motion, Geoscience:Oceanography:Physical , Geoscience:Geology:Structural Geology:Rheology/Behavior of Materials

Subduction Zone Earthquakes part of Starting Point-Teaching Entry Level Geoscience:Interactive Lecture Demonstrations:Examples
While working in groups to facilitate peer tutoring, students manipulate a hands-on, physical model to better comprehend several characteristics of subduction zone earthquakes. -

Subject: Geoscience: Environmental Science:Natural Hazards:Earthquakes, Geoscience:Geology:Tectonics, Geophysics:Seismology

Adhesion, Cohesion, and Surface Tension Demonstration part of Starting Point-Teaching Entry Level Geoscience:Interactive Lecture Demonstrations:Examples
This short (<5-10 minutes) pair of demonstrations uses glass slides with a very thin film of water to demonstrate the cohesive and adhesive forces of water molecules, and a needle floating on water to ...

Subject: Geoscience: Geoscience:Hydrology

Pressure Melting of Ice: While-U-Wait part of Starting Point-Teaching Entry Level Geoscience:Interactive Lecture Demonstrations:Examples
In this demonstration, students get to witness pressure melting and regelation first-hand. A weight is suspended via a thin wire over an ice cube. Over the course of the course of the demonstration, the wire ...

Subject: Geoscience: Physics, Geoscience:Hydrology

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.

Subject: Geoscience: Geoscience:Geology:Historical Geology, Geochemistry:Radioisotopes

M&M Model for Radioactive Decay part of Quantitative Skills:Activity Collection
A tasty in-class demonstration of radioactive decay using two colors of M&M's. Illustrates the quantitative concepts of probability and exponential decay. This activity is appropriate for small classes (<40 students).

Subject: Geoscience: Geoscience:Geology:Historical Geology

The nature of volcanism as controlled by viscosity part of Cutting Edge:Courses:Petrology:Teaching Examples
This activity is fun to include in a classroom. This activity has the students design demonstrations using ketchup and peanut butter to document how viscosity differences between rhyolite and basalt control various ...

Subject: Geoscience: Geoscience:Geology:Igneous and Metamorphic Petrology:Igneous Processes, Volcanology



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