Interchangeable Dial for Demonstration Meter, Model H Health & Genetics_Equipment & Supplies Virtually friction-free 2-meter air track

Virtually friction-free 2-meter air track shipped with vehicles

letting students read image height and position directly off the projected real image during focal-length investigations

providing a stable heating platform for introductory chemistry and general science classroom work

Virtual instruments

Plastic strip with two crocodile clips and 4mm sockets

Interchangeable Dial for Demonstration Meter, Model H Health & Genetics_Equipment & Supplies Virtually friction-free 2-meter air trackFive hundred milliamp DC scale on a 315x115mm laminated panel with sealed shunt, sized to reconfigure the demonstration meter as a 0 500mA ammeter for general purpose student bench work.