"Janitorial Supplies"

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.

High quality linear expansion apparatus to study thermal expansion.

Hands on demomstration showing the power of a vacuum.

Demonstrate the speed of heat conduction in five different metals.

Classic Demonstration of Convection Currents

The liquid convection apparatus is designed to show the convection of heat in a liquid.

Ball and Ring Apparatus demonstrates thermal expansion.

Simple tool to explore the thermal properties of matter.

Learn how home thermostats and circuit breakers operate.

High Quality for the Classroom.

Organize the study the disorder.

Investigate the thermal characteristics of three electrical thermometry devices
Explore the features and behavior of a closed loop digital temperature control system

Small temperature difference create motion in this unique engine.

Demonstrate how the frictional force on an object depends on the surface, not mass.

Demonstrate how the Second Law of Thermodynamics can create electricity.

This simple device gives a graphic demonstration of the sun’s radiative energy.