Specific Gravity Metal Specimen Set

Transparent plastic body. Each scale has been individually calibrated and equipped with a high grade spring with adjustable zero. High contrast marking make readings easy. Plated steel suspension ring at top and hook at bottom.

The four specimens in this set help explain to students the concept of mole. The Mole set contains four element specimens: Copper, Iron, Zinc and Aluminum. Each sample contains one mole, 6.02 x 1023 atoms of the element.