Hand-Painted 3D Starfish Sectional Anatomical Model on Base, 18 x 16 inch Light & Optics_Spectroscopy exposing the longitudinal and transverse

exposing the longitudinal and transverse components of wave motion mechanically

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

demonstrating mechanical advantage as the angle of incline changes the effort needed to roll the cart up the slope

Labeled-terminal 50-ohm resistance unit at 7

81-piece physics mechanics kit covers comprehensive laboratory investigations through force analysis

Hand-Painted 3D Starfish Sectional Anatomical Model on Base, 18 x 16 inch Light & Optics_Spectroscopy exposing the longitudinal and transverseThree dimensional starfish sectional model reveals echinoderm anatomy, water vascular system, and radial symmetry for marine biology teaching.