Science Gizmos: Density Cubes.
These Science Gizmo ‘Density Cubes’ are available with extra large (easy-to-measure) 2.5 cm cubes of six different metals.
Students identify each metal cube by determining its density to calculate the purity
Set includes one cube of each: aluminum, brass, copper, iron, lead, and zinc.
(NOTE: Brand may vary from image displayed)