"activities&amp"

Easy to use because of its smaller diameter and simple means of hanging and loading, this gyroscope brings precession diagrams to life.

An excellent apparatus for showing the function of parts in an AC or DC motor and generator. Operates as either a shunt-wound or series motor. The unit is similar to the St. Louis Motor. Included with the motor are a powerful horseshoe magnet and an electromagnet.

These free-running plastic pulleys are durable in design.

Created especially to meet the requirements of the GLOBE program.

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A set of eight coils wound on individual plastic spools. Each coil has two binding posts.

This working model thermostat will demonstrate how differential expansion is used to control temperature. A bimetallic strip is used to open or close an electric circuit when temperature changes. The contacts will carry about three amperes. The unit can be operated with a 6 V lantern battery, low voltage power supply, or a blow dryer. Mounted on a metal base; approximately 15 cm high.

This LCD clock keeps time using potatoes, soda, or plants.

This force table pulley includes a heavy-duty clamp and operates smoothly.

What Soil Nutrients Do Your Plants Really Use?

The Complete Precision Air Table helps investigate low-friction collisions.

Students Examine Their Own Blood To Identify Components

Experiment with Solutions in Equilibrium

A unique light prism with a flat and slanted edge.

Examine Simulated PCR Products to Find BSE

The award-winning Snap Circuit Series uses building blocks with snaps to build electrical and electronic circuit projects.

In this experiment, crime scene DNA fingerprints are compared with those obtained from suspects.