5-Material Equal Mass Density Set (Aluminum, Brass, Nylon, Acrylic, PVC) Metal Labware_Metal Bases & Rods with identical volumes across specimens

with identical volumes across specimens for direct mass-density comparison

Turning the hand crank walks students through every stage of the 2-stroke gasoline firing cycle on a 14-inch model

Half-size digestive system model fits smaller class benches while preserving the full esophagus-to-rectum path and accessory organ anatomy in two removable parts

paired with electroscopes and pith balls in classic electrostatic-charging investigations

with adjustable slit and draw-out focusing for examining the spectral composition of light sources

5-Material Equal Mass Density Set (Aluminum, Brass, Nylon, Acrylic, PVC) Metal Labware_Metal Bases & Rods with identical volumes across specimensEqual mass density set in aluminum, brass, nylon, acrylic, and PVC, the shared mass isolating volume and density as the distinguishing variables across metals and polymers.