Measure a Changing Volcano part of EarthScope ANGLE:Educational Materials:Resources
This hands-on demonstration illustrates how GPS can be used to measure the inflation and deflation of a volcano. Volcanoes may inflate when magma rises closer to the surface and deflate when the pressure dissipates or after an eruption.

How Many Is A Million? part of Rates and Time:Visualizations with Teaching Notes
Roger Steinberg, Department of Natural Sciences, Del Mar College 5000 Dots by Computer (Click image to enlarge and download.)

In-classroom Pumping Test part of Hydrogeology:Activities
Students conduct a pumping test in a sand-filled basin or tank in the classroom with either a siphon drain or small fountain pump. Drawdown is measured in small piezometers and students analyze the data to ...

Thermohaline Circulation Demonstration part of Oceanography:Activities
This activity helps the students to visualize the effects of temperature and salinity on water density, and the resulting thermohaline circulation. Important processes visualized in this demonstration are ...

Weathering Experiment part of Introductory Courses:Activities
This project has students dirty several dishes equally and design experiments to determine which analogs of geologic processes are most efficient for removing the baked-on food. Students calculate rates of ...

Sonar Demonstration -- Human Sound Wave part of Oceanography:Activities
Sonar technology allowed scientists to produce high-resolution maps of the sea floor for the first time. This sonar demonstration uses a Human Sound Wave to image the "sea floor" in a lecture hall. In ...

Price elasticity of demand survey part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples
Students survey class members to estimate the price elasticity of demand for a number of goods and services.

Igneous Rocks Model part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples
While working in groups to facilitate peer tutoring, students use samples of four igneous rocks (gabbro, basalt, granite, and rhyolite) to observe differences in texture, color and grain size and make inferences ...

Seasons part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples
While working in groups to facilitate peer tutoring, students manipulate a hands-on, physical model to better comprehend the Earth's position in space, the Earth's rotation axis and seasons.

Half Life Model part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples
While working in groups to facilitate peer tutoring, students manipulate a hands-on, physical model to better comprehend the nature of half life. Students use the model to simulate the decay of radionuclides. The ...