Air-Cooled Rheostat, Model C Glass Bottles_Reagent Bottles Large-scale typical flower model with

Large-scale typical flower model with removable floral parts and a bisected ovary showing internal ovule arrangement for detailed botany instruction

ESP control module for the hydraulic unit

illustrating linear thermal expansion

one fitted with an exploder piston for impulse experiments

One-inch brass ball that threads onto a pendulum string as a heavier metal counterpart to aluminum or steel balls in mass-dependent periodic-motion investigations

Air-Cooled Rheostat, Model C Glass Bottles_Reagent Bottles Large-scale typical flower model withAir cooled rheostat with extended tube ventilation, dissipating heat across the slide bar carriage during sustained high current circuit work in physics laboratory demonstrations.