Hand-Painted 3D Starfish Sectional Anatomical Model on Base, 18 x 16 inch Light & Optics_Spectroscopy Copper-block plug key switch with

Copper-block plug key switch with two 4mm terminals and a removable plastic-guarded plug

with both 4mm stackable sockets and screw terminals so leads wire in without an adapter to either bench standard

Fullerene C60 kit with 60 atoms and 90 bonds for building the spherical cage structure characteristic of fullerene carbon allotropes

Used to produce concentric Newton's rings under monochromatic light

and membrane systems for introductory cell biology teaching

Hand-Painted 3D Starfish Sectional Anatomical Model on Base, 18 x 16 inch Light & Optics_Spectroscopy Copper-block plug key switch withThree dimensional starfish sectional model reveals echinoderm anatomy, water vascular system, and radial symmetry for marine biology teaching.