"activities&amp"

The Digital Photogate Free Fall Apparatus retains the precision of older models while eliminating the hassle of setting up heavy steel columns and adjusting spark recorders.

How high did it really go? Measure your rocket's altitude it with this easy to use device.

Plastic disc to demonstrate rotational energy.

This set demonstrates a wide variety of physical science topics including the resolution of forces on an inclined plane, kinetic and potential energies, uniform and accelerated motions, and the friction between two surfaces.

Metal apparatus designed to demonstrate second law of motion.

Perfect for density experiments, use this set determine the mass and volume of each sample and graph the mass versus volume. The slope of the straight line that results is the density of the material.

Get your model rockets in the air with these popular rocket engines.

This versatile timer with infrared sensors can be used to measure the speed of a moving object.

With the Force Mechanism Trough, students can research acceleration and the effect of gravity on a moving body by propelling steel balls or a wood block down an aluminum trough track.

The most complete model rocketry kit on the market.

With the Large Plastic Dynamics Cart, students can explore the changes in motion that occur in a dynamics cart when different amounts of net force are applied.

Study the motion and behavior of gas molecules with this intriguing demonstration. An electric motor, running at 4 to 12 V DC, vibrates a small platform inside a transparent tube. This platform then violently vibrates the many small stainless steel balls inside the tube.

A set of 15 samples of different materials used to challenge students to identify materials based on measurement of their density. For some specimens this will be straightforward. In other cases, it will lead to a discussion of uncertainty in measurements and data, and to an awareness that different materials may have nearly the same density.