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Chalkboard Protractor
Rescue Life series
For local application for immediate relief
ZO0112 Frog blood
First aid tape roll
STEM Educational Seismograph Model Cotton Chalkboard ProtractorIncluded: 1 x Educational Seismograph Model Kit, base, paper roll, dowel, support bar, wire arm, eyebolt, small washer, 2 x medium washers, large washer, wing nut, rubber grommet, stylus, rubber band, nut, screw, Instruction Manual. Demonstrates the measurement of seismic waves generated by earthquakes. Records the intensity of a simulated earthquake using a stylus and paper roll. Tabletop unit measures 12" wide and 9" high when assembled. Seismograph
US$ 18.00
US$ 20.00
US$ 200.00
US$ 20.00
US$ 20.00
