US$ 86.62
supporting small-feature eye anatomy teaching
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
this analog DC ammeter at 0
Simple Machines Wedge Model Material_Aluminum supporting small-feature eye anatomy teachingUsed 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$ 86.62
US$ 65.93
US$ 150.56
US$ 52.03
US$ 148.30
US$ 153.27
US$ 132.25
US$ 41.06