Plan: Students think of ways to build a simple device that will record ground motion. Draw plans out on a piece of paper, and plan the materials needed. Do not give much instructions!
Build: In small groups of 3–4 students, students design and construct a seismograph using common household and craft materials provided. Each group will demonstrate to the class (by shaking their table) how their seismograph records motion
Test and Compare: Test your seismograph! Shake the desk that the seismograph is on, and (if applicable) move the “recording paper” to see movement over time.
At the same time, place the Raspberry Shake seismograph on the desk and watch the graph that results from the shaking. Think about the similarities and differences between the geophone, the ground motion sensor used in the Raspberry Shake, and the sensor for your homemade seismograph.