5X TBE Electrophoresis Buffer Concentrate, 500mL Chemical_Glycerin used to demonstrate charging by

used to demonstrate charging by induction and repeated transfer of charge

Twenty-specimen set spans igneous

Whole-class-visible giant molecular model set with 99 atoms 1-2 inches in diameter and 343 total pieces including double-bond

Two pith balls suspended on unspun silk from a brass pillar

Single-hole rubber stopper with 5mm hole measures 27 x 31 x 32mm for tubing pass-through and laboratory vessel sealing applications

5X TBE Electrophoresis Buffer Concentrate, 500mL Chemical_Glycerin used to demonstrate charging byUsed as the standard agarose gel running buffer for DNA electrophoresis, this 500mL bottle of 5X Tris Borate EDTA dilutes 1: 5 to provide the high resolution ionic environment for DNA work.