US$ 12.00
sized to handle both wall-supply and battery-circuit current measurements
sized to suspend from a stand for mechanical-advantage experiments
supplied in a protective case so spare leaves stay flat and undamaged until installation
Diffraction grating mounted on a 90 x 40mm card slide
Polyhedral 120mL glass alcohol lamp ships with a metal cap and fiber wick for low-temperature bench heating in chemistry and biology demonstrations
Pendulum Set on Stand Subject_Earth Science sized to handle both wall-supplyThree bob pendulum stand mounting iron, steel, and wood bobs on separate strings to a 42. 75 inch rod, for side by side period versus mass comparisons across three materials.
US$ 12.00
US$ 130.00