Easily measure the calories in solid foods with this unique device.
This simple procedure lets students test multiple samples within one class period.  
Then calculate the heat evolved per gram of food burned, comparing the result to food labels or other burned samples.
Pin the food on the stand under a flask of water and measure the temperature change of the water as the food burns.
Instructions included.

The Thermoelectric Effects Apparatus is designed for 2 types of investigations:
Investigating the thermal characteristics and measuring techniques of 3 devices commonly used for industrial and technical thermometry.
The instruction manual contains sample activities and sample data.

Specifications:
Heater Supply: Regulated Voltage Source: 0- to 36-V DC, 10-turn potentiometer control
Digital Current Display: 0.000 to 1.999 A
Cooling Fan: 12-V DC, 0.14 A, on/off switch control
Digital Controller: Configurable for P, PI, PD, or PID mode
Process Value (PV) Range: 0 to 400° C (factory default—settable)
PV Temperature Display: 4-digit, resolution 1° C or 0.1° C
SV Temperature Display: 4-digit, resolution matches PV

24 settable parameters
2 parameters determined by apparatus configuration
Power Input: 110-V AC, 60 Hz, 65 W
Fuse: Miniature type, 5 x 20 mm, F1.5 A, 250 V
Dimensions: Oven: 13 cm H x 35 cm W x 31 cm D
Brass Heating Block: 40 mm diam x 67 mm H
Weight: 5.2 kg (11-1/2 lb)

Thermocouple (K-type, Chromel-Alumel)
Chromel: Ni, 90%; Cr, 10%
Alumel: Ni, 95%; Mn, 2%; Al, 2%; Si, 1%

The thermocouple generates approximately 4 mV for a temperature difference of 100° C between the hot and cold junctions. 
Measurement of the output between room temperature and 100° C can conveniently be made using a digital multimeter with a resolution of 0.01 mV or an appropriate data logger. 
The temperature of the ice water should be measured before and after the experiment using independent means, such as a thermometer or temperature probe.

The Stirling engine uses an external heat source to create a temperature difference that produces energy.
Observe firsthand the conversion of heat into mechanical and electrical energy. 
Quality construction means this model will last through many uses. 
Moving the pistons and a flywheel so the engine runs. 
Easily see all working parts of the engine. 
No assembly required. Includes instructions. 
Base dimensions: 3-1/2 x 7"
Height to the top of engine: 3-1/4"

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When 2 steel balls collide, the impact generates enough heat to burn a hole in a piece of paper. 
Your students will not forget this spectacular transformation of mechanical energy into heat energy. 
Instructions included.

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These banana/alligator cords easily connect to a variety of terminals. 
They feature a stacking banana plug on one end and an alligator clip on the other. 
Insulated 18-SWG copper wire construction. 
Length, 24". Pack of 6 (3 red and 3 black).

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Designed for simplicity and economy. 
Ideal for lecture table or student laboratory work. 
Consists of nonconducting support equipped with binding posts connected to 2 insulated platinum electrodes, 2 inverted 6" test tubes, and a 4 1/2 × 5" battery jar. 

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Used to demonstrate the characteristics of simple and primary cells. 
Consists of an 8-oz plastic jar with a screw-on plastic rim containing 2 adjustable brass electrode holders, 8 electrodes of 7 different metals (1 aluminum, 1 nickel, 1 tin, 1 graphite, 1 iron, 1 copper, and 2 zinc), and a porous ceramic cup. Instructions included.

Comes with instructions.
Used to demonstrate the relative conductivity of various solutions. 
Requires a 3-V DC power source (not included). 
Consists of a miniature lamp receptacle mounted on a PVC base, a bulb, and a clear glass tumbler.