A printable copy of the experimental design form, used in Project GUTS CS in Science Modules, for students to plan an experiment, including identifying variables, planning data collection and analysis, and interpretation.
Identify the location of an earthquake epicenter using a travel time graph and three seismograph tracings. The epicenter is the point on Earth's surface directly above an earthquake. Seismic stations detect earthquakes by the tracings made on seismographs. Tracings made at three separate seismic stations are needed to locate an earthquake epicenter.