Knife Switch Demonstrator with 4mm Terminals Science at Home_General Science Supplies Combines detailed cranial anatomy with

Combines detailed cranial anatomy with a removable life-size brain

Built for measuring photosynthetic gas exchange

used to compare reactive-metal electrolysis behavior against carbon and platinum in the same apparatus

this concave glass mirror at 100mm focal length runs at f/1 for vivid real-image demos and converging-reflection work

dual digital displays monitoring voltage and current simultaneously

Knife Switch Demonstrator with 4mm Terminals Science at Home_General Science Supplies Combines detailed cranial anatomy withSingle pole double throw knife switch mounted on a 4mm terminal base, letting students reroute a modular circuit between two branches without touching unmounted components.