74-Piece VSEPR Molecular Model Kit for Bond Orientation Subcategory_Specific Gravity Bottles and refraction blocks during ray-box

and refraction blocks during ray-box and spectrometer experiments

3125 inch thickness

5-inch needle-pointed stand grips a 3/4-inch-wide bar magnet upright for hands-free study of attraction

5V flash-lamp bulbs in student-built circuits and small-scale optics demonstrations

Universal 2-input NAND gate module with red/green LED outputs and a printed truth table

74-Piece VSEPR Molecular Model Kit for Bond Orientation Subcategory_Specific Gravity Bottles and refraction blocks during ray-boxUsed to teach VSEPR geometry, this 74 piece kit builds linear, bent, trigonal planar, pyramidal, tetrahedral, and trigonal bipyramidal molecules with lone pair orbitals and pear shaped bonds.