US$ 647.50
Polypropylene round test tube rack holding 12 tubes — four at 25 mm and eight at 19 mm — with 360-degree access for benchtop chemistry demonstrations and student experiments
Wooden fulcrum-balance simple-machine model with a sliding pivot
5-inch Alnico bar pair
87-inch focal length
Simple Machines Wedge Model Material_Aluminum Polypropylene round test tube rackUsed to demonstrate how a wedge multiplies force during splitting, this wooden simple machine model lets students measure input effort against output splitting force at different wedge angles.
US$ 647.50
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