PBS
Pbs Teachers: Galileo's Battle for the Heavens Plotting Sun Spots
In this activity, students follow in Galileo's footsteps as they examine the nature of sunspot cycles, define solar minimum and solar maximum, and graph data for a solar cycle. Then they will predict the next solar maximum and when the...
Other
University of Wisconsin Green Bay: Faults and Earthquakes
This site is primarily set up as an outline and is loaded with graphs, maps, and images. It covers a variety of earthquake-related topics, such as what causes earthquakes, fault lines and structures, seismology, a historical look at...