Silk Cloth Square for Static Demonstrations, 12 x 12" Entomology & Zoology_Entomology Supplies and electromagnet to map mechanical/electrical/light/heat

and electromagnet to map mechanical/electrical/light/heat conversions

and numbered anatomical details for comprehensive teaching

Solid glass friction rod that develops a positive electrostatic charge when rubbed with silk or wool

and hinge-distance scales

Heavy-base Bunsen burner adds stopcock gas control for fine flame adjustment during chemistry experiments with liquid propane or butane fuel

Silk Cloth Square for Static Demonstrations, 12 x 12" Entomology & Zoology_Entomology Supplies and electromagnet to map mechanical/electrical/light/heatUsed to draw electrons from glass and ebonite rods during rubbing, this silk square gives friction rods a strong positive charge for triboelectric and electrostatic demonstrations.