Bifocal Magnifier 3X/5X

To demonstrate inverse relation between density and volume. Set of 5 metal cubes, Copper, Aluminum, Zinc, Iron and Brass of equal mass 20 gm.

To demonstrate the inverse relationship between density and length. The Aluminium, Copper, Nylon, PVC and Polyethylene specimens are all 12 mm in diameter with 15 gm mass. Lengths range from 15 to 100 mm. Instructions are included.