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This aluminum tuning fork has sliding weights on each tine.

Design bugs in their natural environment.

The properties of radioactivity and the concept of half-life determination can be difficult subjects for students to fully understand.

Make Sure the Water is Free of E. coli

This kit lets students see the effect of electric and magnetic fields on an electron stream.

Simple, But Amazingly Sensitive - Measure One of the Universe's Fundamental Constants!

Delivers outstanding demonstrations of over 70 phenomena in geometric and physical optics.

Classic Demonstration of Convection Currents

For all Optical Applications

This set is economical, durable, and versatile.

Easily make any bar into a lever.

Best Seller!

Tandem pulleys give students a clear picture of mechanical advantage and velocity ratio in a pulley system.

For measuring the densities of larger objects.

Produces a Louder Tone With a Greater Range of Audible Overtones

Includes set of six tuning forks: 125, 250, 500, 1000, 2000, and 4000 Hz.