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.)

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 ...

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 ...

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.

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.

Introduction to Work and Energy: The Hopper Popper Surprise part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples

Buoyancy and Archimedes Principle part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples
Summary Buoyancy is based on Archimedes' Principle which states that the buoyant force acting upward on an object completely or partially immersed in a fluid equals the weight of the fluid displaced by the ...

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 ...

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 ...