Earth's Magnetic Field CogSketch geoscience worksheet part of Introductory Courses:Activities
Bridget Garnier, Blue Valley School
Sketching activity that uses a sketch-understanding program, CogSketch. To draw attention to the changes in magnetic inclination with latitude on Earth, students move, rotate, and match packages of "rock" ...

Sonar Demonstration -- Human Sound Wave part of Oceanography:Activities
Kent Syverson, University of Wisconsin-Eau Claire
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 ...

Wave Interference part of Deep Earth:Activities
Glenn Richard, SUNY at Stony Brook
This activity engages students in the exploration of interference between sinusoidal wave forms. They use an interactive applet to manipulate the phase, wavelength, amplitude, and phase velocity of two waveforms ...

Visualizing Sun Position of the Seasons part of Visualization:Examples
Chris Sinton, Ithaca College
The goal of the exercise is to help students visualize and better understand how the sun changes apparent position over the course of the seasons.