Heat & Work

BALL AND RING

Brass ball, 3/4" diameter, fits into brass ring. Ball passes freely through ring when both are at same temperature. After application of heat, as little as 100° C change in temperature, th... More.

Convection Apparatus

Designed for studying convection currents in the air, this apparatus consists of a metal box with glass front and two acrylic chimneys mounted on the top. Convection currents visible through the gl... More.

Conductometer

Demonstrates the conductivity of five metals: silver nickel, steel, aluminum, copper, and brass. Hub is stationary, and is mounted on a plated steel rod with wooden handle. More.

Compound Metal Bar

A classic experiment that never grows old. Two metals (nickel and stainless steel) of different heat expansion coefficients welded together and mounted in wooden handle. Demonstrates unequal expans... More.

Double-Walled Calorimeter with Electric Option

A calorimeter with a double-walled cover will minimize heat loss. The inner and outer vessels are made of aluminum. The calorimeter has a stirrer and support for the inner vessel. Item is now inter... More.

Eutectic Alloys

Form a metal alloy as bismuth and tin are heated to the eutectic point of the two metals. Includes 100 ml glycerin, 50 g bismuth metal lumps, and 15 g of tin metal mossy. Grades 6-12. More.

Thermoelectricity Demo

This little demo is based on an effect discovered by Thomas Johann Seebeck in 1821 while experimenting with a loop of wire made of copper and bismuth. The heat from his hand was enough to produce a... More.

Leslie’s Cube

Use to demonstrate the heat absorption of different surfaces. Tin plate, 125 mm side, with surfaces dull black, bright black, white, and bright tin. Instructions included. More.

Memory Springs

A teacher-created demonstration involving the nature of heat, alloys, elasticity, crystals, matter, force, and motion. Mystery springs are made from a nickel titanium alloy that allows their shape ... More.

Metals Transfer Heat: Conductivity Apparatus

Discover which metal is the best conductor of heat! Test thermal conductivity in metals using an Edser conductivity apparatus. Copper, brass, bronze, steel, and stainless steel rods are mounted ver... More.