FRICTION PAD (EXCITING PAD) WOOL FLANNEL

Item 3129-03

$2.20

Use this flask for experiments in detection of electric charge and determination of polarity. It consists of an Erlenmeyer flask, 250 ml, and a plated rod with a knob of diameter 0.75″ (19 mm) passing through a rubber stopper. It is an excellent tool for laboratories and classrooms.
• Comes with 1 pair of aluminum leaves
• Additional aluminum leaves available (Item #3135-02)

Item 3132-01

$6.88

Use this item for demonstrating the attraction and repulsion of electric charges. It consists of an insulated brass pillar and hook on a base. It is useful for interesting and engaging demonstrations.
• Comes with a Teacher’s Guide
• Supplied with 2 colored pith balls with strings attached
• Additional pith balls available in packs of 10 (Item #3134-02)

Item 3134-01

$3.25

This switch is useful as a basic component of any electrical laboratory. It is a single-pole, single throw.

• Mounted on a Bakelite base
• Allows visible connection for easy use
• With screw holes and suitable for bench fixing and panel mounting
• 12 volts, 1 amp

Item 3147-21

$0.80

This switch is useful as a basic component of any electrical laboratory. It is a single-pole, double-throw.

• Mounted on a Bakelite base
• Allows visible connection for easy use
• With screw holes and suitable for bench fixing and panel mounting
• 12 volts, 1 amp

Item 3147-22

$1.10

This switch is useful as a basic component of any electrical laboratory. It is a double pole, single throw.

• Mounted on a Bakelite base
• Allows visible connection for easy use
• With screw holes and suitable for bench fixing and panel mounting
• 12 volts, 1 amp

Item 3147-43

$1.56

This switch is useful as a basic component of any electrical laboratory. It is a double pole, double throw.

• Mounted on a Bakelite base
• Allows visible connection for easy use
• With screw holes and suitable for bench fixing and panel mounting
• 12 volts, 1 amp

Item 3147-44

$2.27

Induction Coil 25mm

Item 3148-01

$64.40

Induction Coil 50mm

Item 3148-02

$119.60

Use these electrodes for assembling voltaic cells, electrolysis experiments, etc. They are a useful addition to classrooms and labs.
• Made of aluminum and stamped with periodic symbol “Al”
• Approx. 1″ (25 mm) W x 5″ (125 mm)

Item 3151-01

$0.65

This explosive demonstration is great for discussing adiabatic compression (rapid compression that raises air temperature) in diesel engines, Ideal Gas Laws, the laws of thermodynamics, and the resourcefulness of ancient people. As air compresses, the temperature increases and combustible material bursts into flames. It’s a simple experiment that students are sure to remember!
• Comes with a Teacher’s Guide and reproducible Student Handout
Includes:
• Cotton
• 2 extra butadiene-acrylonitrile rubber O-rings

Item 1522-00

$11.07

• Teacher's Guide Included
• Handout Included
• Video Available

This is a classic example of thermodynamics in action! The heat of your hand warms the bottom bubble, causing the air in the Hand Boiler to expand. Liquid is forced into the top bubble, making it appear to boil for an exciting demonstration!
• Comes with a Teacher’s Guide
• Glass construction with 2 bulbs connected by a spiral tube
• Assorted colors

Item 2010-10

$2.84

• Video Available

This is a classic example of thermodynamics in action! The heat of your hand warms 1 bulb, causing the air in the hand boiler to expand. Liquid is forced into the other bulb, making it appear to boil for an exciting demonstration!
• Comes with a Teacher’s Guide
• Glass construction with 2 side by side bulbs connected by a straight tube

Item 2010-20

$5.40

• Video Available

The Galileo thermometer consists of a sealed glass tube that is filled with water and several floating bubbles. The bubbles are glass spheres filled with a colored liquid. Attached to each bubble is a little metal tag that indicates the temperature (Fahrenheit) – a beautiful way to demonstrate pressure and fluid principles!
• Comes with a Teacher’s Guide
• Approx. 13″ (330 mm) H

Item 1167-00

$13.07

• Video Available

Use this thermometer for classroom or outdoor use. It is a spirit-filled glass thermometer mounted on a rustproof aluminum plate. The thermometer has a dual scale: -30° to 230°F x 1°F and -30° to 110°C x 1°C division.
• Approx. 6.5″ (165 mm) L x 1″ (25 mm) W. Please note this thermometer is not resistant to chemicals.

Item 1202-01

$1.20