Physical Science

Drinking Bird

This fascinating education toy has been around for years! Dip its head into a glass of water, stand the bird up, and it never stops drinking. Great discussion starter in the classroom. Explanation ... More.

Happy/Sad Ball Kit

Two rubber balls that look, feel, and squeeze the same - but try bouncing them! These intriguing inelastic and elastic collision balls are popularly called “happy and sad.” One ball reb... More.

Hall’s Carriage

This rugged carriage has a one-piece, high-impact plastic body. The machined aluminum wheels and axles are mounted on hardened steel cone bearings for minimum friction and long life. Designed to be... More.

Pulley Cord - 30-ft. Roll

Tightly braided nylon cord especially designed for pulley and pendulum systems. *NOTE: This is a commonly used component for publishers’ hands-on science kits. More.

9" Support Rod for the Inclided Plane

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Equal Mass Cylinder Density Set

Demonstrates the inverse relationship between density and length for cylinders of the same mass and diameter. The set consists of five cylinders (copper, aluminum, nylon, polyvinyl chloride, and po... More.

Digital Timer & Photogate

This solid-state apparatus is a must for any physics class. Two photogates are included, each with its own shielded connecting cord and mounting screws. The timer has functions for timing mechanica... More.

Quiet Air Source Pump

This piece of equipment can be used on any apparatus requiring an air source such as air tables or air tracks. Very quiet in operations, and comes complete with a 1-1/8" dia. hose. Operates on ... More.

Diffraction Mosaic

The diffraction mosaic is a precision array of seven different slots/array designed for use in performing laser double- and multiple-slit diffraction experiments. The mosaic contains four double sl... More.

Spectral Analysis Kit

Students observe the characteristic color imparted to a flame from various elements. They also observe that different elements produce different, distinguishing colors. Using the spectroscope, stud... More.