"Janitorial Supplies"

Efficiently illustrates the various types of diffraction.

Convenient and easy storage.

A must for your optics lab

Wide range of cubes for density experiments.

Long, pure sounding aluminum tuning forks.

Demonstrate refraction and internal reflection.

Small electrolysis apparatus with beaker included.

Snap on battery connectors for your electronics projects.

Quality ceramic resistors, perfect for physics experiments.

Frosted acrylic lenses for optical experiments.

Simple tool to explore the thermal properties of matter.

Quality resistors for electrical experiments.

Compact electric storage for circuits.

Control the current direction in circuits.

Small temperature difference create motion in this unique engine.

Both versions of these economy tuning fork sets come with a mallet designed for one hard and one soft end for use with all frequencies of forks.