Air-Cooled Rheostat, Model C Glass Bottles_Reagent Bottles Highly useful for the wave

Highly useful for the wave demonstration

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

Used as the red-rail partner to the 300mm black 2mm-plug lead

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 Highly useful for the waveAir cooled rheostat with extended tube ventilation, dissipating heat across the slide bar carriage during sustained high current circuit work in physics laboratory demonstrations.