One-Meter Single-Wire Potentiometer on Metal Base Ceramic Labware_Crucibles letting students compare four densities

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

Four-socket E10 lamp holder pre-wired in series on a hard-plastic base with two 4mm banana terminals

the hBAR infrared thermometer can accurately tell the temperature

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

and a tensioning pulley

One-Meter Single-Wire Potentiometer on Metal Base Ceramic Labware_Crucibles letting students compare four densitiesMetal 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.