Reed Relay Demonstration Board Science at Home_General Science Supplies Integrated diaphragm beneath an 8-inch

Integrated diaphragm beneath an 8-inch heart model contextualizes cardiac position within the thoracic cavity during combined respiratory and cardiac teaching

Six-piece polypropylene beaker set spans 50mL to 2000mL for complete classroom and lab volumetric workflows without glass breakage risk

75-inch full-class units

Ratchet-stopped nickel-plated brass 25 mm micrometer screw gauge reading to 0

Reed Relay Demonstration Board Science at Home_General Science Supplies Integrated diaphragm beneath an 8-inchDemonstrates electromagnetic switching on a base with 4mm plug connections, where current through a coil closes a separate contact and shows how a small signal controls a larger circuit.