220-Piece Advanced VSEPR Molecular Model Kit, 65 Atoms Size_17.5 Inch Used to crank a row

Used to crank a row of 16 cam-driven rods through a moving sine wave

producing a spread of spring constants for Hooke's-Law and mass-spring comparison work in introductory mechanics

and pyramidal geometries alongside single

3 glass features 10mL capacity with spout for small-volume chemistry and laboratory applications

and 500mm focal lengths for comparing converging and diverging behaviors

220-Piece Advanced VSEPR Molecular Model Kit, 65 Atoms Size_17.5 Inch Used to crank a rowSixty five atom advanced VSEPR kit at 220 total pieces with multifaceted atoms supporting trigonal, tetrahedral, bent, and pyramidal geometries alongside single, double, and triple bonds.