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...

For this task, students are shown the graphs of two equations, with areas bounded by their lines and intersections shaded in different colors. They are asked to write a system of equations or inequalities for each shaded area and explain...

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...