US$ 6799.50
and a spring-loaded clip to grip a diffraction grating on the PH0619 spectrometer
and Newton's-second-law apparatus in mechanics experiments
Frog dissection model with English keycard reveals internal structures and organ identification for amphibian anatomy instruction
Solid sphere with a small ring for suspension
Steel Cylinder Hooked Weight Set Chemical_Active Dry Yeast and a spring-loaded clip toCoordinated mass set of cylindrical weights with integral hooks supports spring scale calibration and systematic physics experiments on force, gravity, and pulleys.
US$ 6799.50
US$ 5499.50
US$ 5999.50