"Dessus de bouchon"

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.

Laminated for long use.

Bring Some Heat Into the Classroom

A set to demonstrate the rise in temperature when a fixed mass of gas is compressed.

This new conductivity bar set features sensitive liquid crystal temperature indicators, which are attached to the front of each of four metal bars.

Apparatus to study convection of gas.

Ideal for studying heat and thermodynamics.

Vivid Illustration of Thermoexpansion.

Hands on demomstration showing the power of a vacuum.

The Student Coin and Feather Tube shows the two items in a vacuum, falling at the same rate.

Ice Melting Blocks are a unique way to teach principles of conductivity of heat and the scientific method.

Ideal for exploring force of friction.

Ideal for Individual Study

Students Can Simulate the Earliest Steam Engine.

This vacuum plate and pad are the perfect tools for vacuum experiments.

The Specific Heat Specimens Set can be used to determine the specific heats of a variety of common metals.