Plano-Cylindrical Concave Lens, 75mm Focal Length, 50 x 45mm Activity Kits_AP Chemistry supplying a contrasting reactive-metal electrode

supplying a contrasting reactive-metal electrode pair for Faraday's-laws and ionic-conduction work

this fixed resistor in an ABS module with 4mm sockets drops cleanly into student-built circuits

the entry-level set for introductory inorganic and organic geometry work in a 4-compartment case

and chemistry

Plano-Cylindrical Concave Lens, 75mm Focal Length, 50 x 45mm Activity Kits_AP Chemistry supplying a contrasting reactive-metal electrodePlano cylindrical concave lens at 50 by 45mm with a 75mm focal length, ~2 by 1. 75 inches, the cylindrical curvature diverging light along a single axis for ray tracing and refraction work.