US$ 119.99
revealing two distinct linear mass-volume relationships when graphed at identical diameters
curving visibly under heat as the two metals expand at different rates
75 inches diameter in ABS and aluminum with three legs and four pulleys
and handle for chemistry heating
2" Friction Cube with 4 Surfaces and Hook Subcategory_Lab Jacks revealing two distinct linear mass-volumeTwo inch friction cube with four distinct faces wood, paper, vinyl, sandpaper and a hook on one side, letting students pull each surface against the same bench to measure mu_s and mu_k.