Thermal Conductivity Demonstration Kit Item Type_Scoop Flat head solid cone stopper

Flat head solid cone stopper in borosilicate glass features 24/29 cone for sealing ground joint vessels and chemistry apparatus

Frog dissection model with English keycard reveals internal structures and organ identification for amphibian anatomy instruction

75-inch plano-convex lenses in an aluminum frame

Bend receiver adapter with vent in borosilicate glass features 24/29 socket for distillation collection with pressure equalization

Thermal Conductivity Demonstration Kit Item Type_Scoop Flat head solid cone stopperThermal conductivity kit with copper, brass, and steel rods, supporting qualitative and quantitative comparison of how heat flows through different metals via a temperature sensor (sold separately).