Aluminum Calorimeter, 75mm Electricity & Magnetism_Electrostatics Wood-based friction board apparatus with

Wood-based friction board apparatus with a 19-inch metal surface plus two hooked friction sliders with different top materials for comparative sliding-friction investigations

75-inch frame for bench storage between uses in teaching chemistry and biology labs

supplying an inert electrode that conducts current without contributing its own ions to the cell reaction

5mA DC interchangeable scale on a 315x115mm laminated panel with integrated shunt

Aluminum Calorimeter, 75mm Electricity & Magnetism_Electrostatics Wood-based friction board apparatus withPolished aluminum calorimeter at 75 by 50mm with a wood or plastic lid, rubber stopper, and stirrer, the low mass vessel minimizing heat absorption during specific heat experiments.