Reed Relay Demonstration Board Science at Home_General Science Supplies with masses between 50 and

with masses between 50 and 400g for 5N spring-scale suspension work

Hand-cranked cam turning against both a straight follower and a lever follower

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

Millimeter-graphed 100 x 75mm screen on a 2

Reed Relay Demonstration Board Science at Home_General Science Supplies with masses between 50 andDemonstrates 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.