Vibrating Atoms Model Kit (27 spheres & 54 metal springs)
This self assembly kit comprises 27 atoms represented by white spheres and 54 metal springs, and is designed to make a 9 x 9 x 9 cubic model of the atoms in a solid. It is capable of demonstrating that solids are made from extended yet closely packed repeatable units that may vibrate in position but do not change their relative locations (MS-PS1-1).
It may also be used to demonstrate how the atoms vibrate with changing temperatures. It is recommended that once assembled, that this model is kept preassembled.