The following model was displayed at the National Science
Teacher Association (NSTA) meeting's Informal Science Share-A-Thon.
San Diego, CA, on March 28, 2002
A strip of paper is pulled out of the front of the seismograph as the box is gently shaken. |
Paper supply roll is located at back of box. |
This is my version. The tin can is suspended from a loop of wire that only allows it to move in one direction. A marking pen is pushed through a hole in the bottom of a can, which is then filled half way with small pebbles. The paper is pulled slowly out to the left and records the shaking of the box. |
This design was developed by the California Science Center.
Contact: Robin Gose, Manager of School & Outreach Programs
(213) 744-7517
700 State Drive, Los Angeles, CA 90037
rgose at csmail.org