Light-Dependent Resistor Demonstration Board Glassware_Glass Flasks anchoring retort stands and apparatus

anchoring retort stands and apparatus to the edge of a classroom workbench

and lead with densities from 2

designed so seated students read the needle without parallax error from a steep viewing angle

and steel cubes machined to the same 1

Polypropylene round test tube rack holding 12 tubes — four at 25 mm and eight at 19 mm — with 360-degree access for benchtop chemistry demonstrations and student experiments

Light-Dependent Resistor Demonstration Board Glassware_Glass Flasks anchoring retort stands and apparatusMounted light dependent resistor with terminal connections, dropping resistance dramatically as light strikes the cell and giving students a visible introduction to photoelectric sensing.