One-Meter Single-Wire Potentiometer on Metal Base Ceramic Labware_Crucibles Highest-decade single-dial resistance box stepping

Highest-decade single-dial resistance box stepping from 100k to 1M ohms in 100k-ohm increments

Plastic strip with two crocodile clips and 4mm sockets

Heavy-duty 500-piece teacher molecular model set with 230 atoms and 270 bonds

and a tensioning pulley

letting students compare four densities by mass alone while the volume is held constant across the set

One-Meter Single-Wire Potentiometer on Metal Base Ceramic Labware_Crucibles Highest-decade single-dial resistance box steppingMetal base one meter potentiometer with 24 SWG constantan wire stretched along a millimeter scale, supplied with a jockey and heavy duty 4mm socket terminals for null deflection EMF work.