"Wards"

For density determinations, set of twelve in assorted sizes, shapes and masses.

Set of 12 Polypropylene bars of different length but the same diameter.

Set of 12 Delrin cylindrical bars of different length but the same diameter.

4 Holders, 12 Al Rods, 12 Brass Rods, 12 PVC Rods, 12 Polypropylene Rods

Fourteen materials in the form of rectangular blocks.

A working gauge is mounted in a transparent case so the actual working parts are visible.

Everything needed to explore the relationship between pressure and volume of gas at constant temperatures.

Compare the falling rate of a feather and a guinea (coin) with air resistance and in a vacuum.

The unit features 11 vertically stacked colors ranging from bright blue to white.

Friction blocks are useful for teaching the basics of force and motion.

Precisely centered aluminum pulleys.

Long lasting metal Pulley.

Economical pulley for simple machine experiments.

Economical pulley for simple machine experiments.

Economical pulley for simple machine experiments.

Economical pulley for simple machine experiments.