STEM Educational Seismograph Model Cotton The graduated marks are specifically

The graduated marks are specifically made to endure heavy temperature changes and heat

The bright colors help children to distinguish between hundreds

Dimensions: L 15 in x W 7

It highlights the details of a dicotyledonous stem in vivid colors showing the longitudinal and cross section of the periderm

For local application for immediate relief

STEM Educational Seismograph Model Cotton The graduated marks are specificallyIncluded: 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