Demonstration Electroscope with Conductor Sphere and Needle Indicator Subcategory_Beakers with a 0 to 20

with a 0 to 20 second reaction window for sanitation and food-safety checks

high-temperature grid flame for chemistry ashing

Seventy-times enlarged skin cross section reveals epidermis

Cork-lined stainless steel safety flask tongs lock jaws around flask necks to prevent accidental drops during transfer of hot distillation vessels between bench stations

Three-part electricity kit with cell holders

Demonstration Electroscope with Conductor Sphere and Needle Indicator Subcategory_Beakers with a 0 to 20Topped with a large conductor sphere and a deflecting needle indicator, this demonstration electroscope detects and visually quantifies the magnitude of static charges.