Specific Gravity Set of 9.

These specimens are large enough for younger children to manipulate. Nine items range in density from 0.05 to 19 g/mL and each is about 1 cc in volume. Includes 7 cylinders, 3.2 cm x 5.5 mm diameter (carbon, aluminum, brass, PVC, copper, polyethylene, steel); glass sphere, 1.1 cm diameter; styrofoam lump; instructions.