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Examples of Teaching with Demonstrations


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Crystallization from Melt Demonstration part of Starting Point-Teaching Entry Level Geoscience:Interactive Lecture Demonstrations:Examples
This demonstration uses melted phenyl salicylate to show how crystals nucleate and grow as the temperature of the liquid melt decreases. -

Subject: Geoscience: Geoscience:Geology:Mineralogy:Crystal Chemistry, Geoscience:Geology:Igneous and Metamorphic Petrology:Igneous Processes

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

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

Phases of the Moon part of Starting Point-Teaching Entry Level Geoscience:Interactive Lecture Demonstrations:Examples
This exercise has students use a simple physical model of the Earth, sun, and moon to understand why the moon changes phases from the perspective of Earthly observers. -

Subject: Geoscience: Geoscience:Lunar and Planetary Science

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

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

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

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



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