"hobo data logger"

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.

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

Add some tech power to your rocket experiments and take the guesswork out of altitude measurements.

The Centripetal Force Kit is inexpensive and effective.

This sturdy Hooke's Law apparatus features a mirrored scale to eliminate parallax error.

Educators can conduct a comprehensive array of density experiments with the density/slope class set.

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

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.

Bring your physics equipment into the 21st century with the new and improved CENCO second law of motion apparatus.

Plastic disc to demonstrate rotational energy.