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*Show and Tell at San Antonito Elementary School*
		Kent Anderson, Geophysicist at the USGS Albuquerque Seismological Laboratory, explaining how seismograph equipment works to Karen Belcheff's 4th grade class at San Antonito Elementary School in Sandia Park, New Mexico.


The boys demonstrated how seismic waves pass through liquid, by standing separately.


The girls demonstrated how seismic waves pass through rock, by linking their arms together tightly.
In a demonstration of the sensitivity of the seismograph equipment, the class stood very still, even holding their breath, and still saw a small amount of movement being recorded. The movement increased significantly when they wiggled their toes.

U.S. Department of the Interior
U.S. Geological Survey
Albuquerque Seismological Lab
Maintainer: gs-g-cr_asl_webmasters@usgs.gov
URL: http://aslwww.usgs.gov/Education/schoolvisit.htm
Last modified: November 14, 2000 (rch)