SEISMOGRAPH MODEL by AMERICAN EDUCATIONAL PROD
Our newly revised Seismograph model gives students a better understanding of how earthquakes are measured and calculated to intensity. This small table top unit will captivate your students as they try to top the Richter Scale. Simulate your own earthquakes and the seismograph will accurately record their intensity. The kit comes complete with a detailed Teacher's Guide. Exellent for Grades 6-12.