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

Half Life Model part of 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 ...

Igneous Rocks Model part of 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 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.

Magma Viscosity Demos part of 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.

Which U.S. President generated the highest budget deficits? part of Library:Interactive Lecture Demonstrations:Examples
Students compare budget deficits and surpluses generated between 1969 and 2008 measured in nominal terms and then as a percentage of GDP.

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

Thermal Conductivity Demonstrations part of Library:Interactive Lecture Demonstrations:Examples
Summary Here are three ideas for demonstrating thermal conductivity to your students. I. Heat flow down a metal rod (or rods) is timed by seeing wax melt at different locations along the rod. II. A rod made of ...

Buoyancy and Archimedes Principle part of 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 ...

Whose Fault Is It Anyway? part of Library:Games:Examples
This game has students simulate the propagation of P and S waves after an earthquake and to use the lag between these to determine where in the simulation the earthquake occurred.

Earthquake Demonstration part of Library:Interactive Lecture Demonstrations:Examples
This demonstration uses an "earthquake machine" constructed from bricks, sand paper, and a winch, to simulate the buildup of elastic strain energy prior to a seismic event and the release of that energy during an earthquake.

Crystallization from Melt Demonstration part of Library: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.

Presenting the Geologic Timescale part of Library:Interactive Lecture Demonstrations:Examples
This project has students model the geologic timescale using distance as a metaphor for time. Students give presentions spaced at distances which represent how far apart in time the events occurred.

Fracture Fundamentals: A Cheesy Analog part of Library:Interactive Lecture Demonstrations:Examples
This activity has students make small cuts in processed cheese food and then apply shear stress perpendicular or parallel to the cuts to see what sort of fracturing will occur.

Law of Diminishing Marginal Returns part of Library:Interactive Lecture Demonstrations:Examples
An ILD to help demonstrate the Law of Diminishing Marginal Returns using an experiment.

The unemployment rate for the class part of Library:Interactive Lecture Demonstrations:Examples
After predicting what the unemployment rate will be for students in the class, a confidential survey modeled on the Current Population Survey questions is used to gather data about each student's employment. Students use this data to measure the class unemployment rate and then assess its accuracy.

Subduction Zone Earthquakes part of Library: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.

Interactive Lecture Demonstrations part of Library:Interactive Lecture Demonstrations
Created by Dorothy Merritts, Robert Walter (Franklin & Marshall College), Bob MacKay (Clark College). Enhanced by Mark Maier with assistance from Rochelle Ruffer, Sue Stockly and Ronald Thornton Interactive ...

Contructing a projectile launcher and free falling target part of Library:Interactive Lecture Demonstrations:Examples
This activity describes the construction and use of a pneumatic cannon and free falling target used to teach the concepts of projectile motion in introductory physics.

Water Contamination Demonstration part of Library:Interactive Lecture Demonstrations:Examples
  Summary: Misplaced Matter and Water Pollution The drinking water pollution demonstration provides a very simple but dramatic way to get students to think about water contamination and drinking water ...