Density Blocks, Hooked Set Of 4, 1 Each

The Density Blocks, Hooked Set Of 4 by United Scientific are four oversized 3.2 cm cubes in aluminum, brass, steel, and copper, each fitted with a hook. A reference table of density values is included. Because the blocks share the same size, the mass differences between metals are obvious in front of a class, and the hooks let teachers hang them from a spring scale for buoyancy lessons in physical science and physics courses.