Hand-Painted 3D Starfish Sectional Anatomical Model on Base, 18 x 16 inch Light & Optics_Spectroscopy Used to determine irregular-object volumes

Used to determine irregular-object volumes by water displacement

Graphite lattice kit whose atoms and connecting rods assemble into planar carbon sheets

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

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

and membrane systems for introductory cell biology teaching

Hand-Painted 3D Starfish Sectional Anatomical Model on Base, 18 x 16 inch Light & Optics_Spectroscopy Used to determine irregular-object volumesThree dimensional starfish sectional model reveals echinoderm anatomy, water vascular system, and radial symmetry for marine biology teaching.