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Model the Theory of Valence Shell Electron Pair Repulsion

Build your own hands-on investigations around these assortments of real feathers, fur, and fish scales. Help students discover the unique features of feathers, see how fur keeps mammals warm, and why scales have remained a fish favorite for millions of years.

Educational Materials, Cellophane, 20×60" Roll

Demonstrate the transfer of mechanical energy into electrical energy with a simple motion of your hand.

The Eddy Current Experiment demonstrates Lenz's Law.

This gyroscope will spin for several minutes.

Laminated for long use.

Ideal for small pulley systems, cord is available in a variety of colors, strengths, and lengths.

For your Electrostatic Needs!

Perfect for demonstrating anchoring as well as connectivity, if one student puts a finger on one contact, another student puts a finger on the second contact and both then hold hands, the ball will light up.

Long, pure sounding aluminum tuning forks.

A bare copper wire of the highest quality. Available in several standard AWG sizes.

A high quality enameled, copper magnet wire.

A good quality bare iron wire. AWG 20.

Dramatically Demonstrate that Temperature Increases with Pressure

This sturdy clamp is invaluable for experiments involving energy, motion, acceleration, and more.