Prism Table for Spectrometer Item Type_Cell Model and cranial proportions for pediatric

and cranial proportions for pediatric instruction

Cutaway working steam engine model with piston

Sodium chloride lattice kit with 27 color-coded gray and green atoms plus 54 connectors for building the full cubic NaCl crystal structure in three dimensions

Two-position copper plug key switch with 4mm terminals and two removable plugs

and 125mm in a plastic wallet with keepers

Prism Table for Spectrometer Item Type_Cell Model and cranial proportions for pediatricMetal 82mm diameter disc on a 6mm mounting rod, providing a stable platform for prisms, glass blocks, and refraction blocks during ray box and spectrometer experiments.