Amoeba Proteus Anatomical Model with Extended Pseudopod, 1000x Magnification Material_Hardwood Designed for liquid-fill Snell's-law work

Designed for liquid-fill Snell's-law work at smaller scale

One-inch brass ball that threads onto a pendulum string as a heavier metal counterpart to aluminum or steel balls in mass-dependent periodic-motion investigations

Long-focal double-convex glass lens at 75mm diameter and 500mm focal length

measuring period under different loads to isolate mass from weight

Complete 12-piece simple machines set covering inclined plane

Amoeba Proteus Anatomical Model with Extended Pseudopod, 1000x Magnification Material_Hardwood Designed for liquid-fill Snell's-law workAmoeba Proteus model at 1000x magnification reveals extended pseudopod, contractile vacuoles, and nucleus for single celled organism anatomy teaching.