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Iron Electrodes (10 x 1.6 cm)
Iron Electrodes (10 x 1.6 cm)
14329

The Iron Electrodes can be used for voltaic cells, electrolysis experiments, fruit batteries, etc.

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$2.09 Each $6.95 Each
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Carbon Electrodes (10 cm Rod)
Carbon Electrodes (10 cm Rod)
14331

x
x

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$6.90 Each $13.95 Each
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Nickel Electrodes (10 x 1.6 cm)
Nickel Electrodes (10 x 1.6 cm)
14332

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x

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$8.70 Each $17.50 Each
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Aluminum Electrodes (10 x 1.6 cm)
Aluminum Electrodes (10 x 1.6 cm)
14333

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x

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$3.70 Each $7.50 Each
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Copper Electrodes (10 x 1.6 cm)
Copper Electrodes (10 x 1.6 cm)
14334

x
x

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$5.20 Each $10.50 Each
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Basic Simple Cells Kit
Basic Simple Cells Kit
17006

This kit allows students to explore the electrical properties of different combinations of electrode materials using safe, everyday chemicals such as soda, vinegar, and fruit juice as electrolytes. The set contains everything needed for the experiments except the electrolytes. Voltage, current, and polarization effects can be investigated. Contents of the set include a simple cell with electrode holders, electrodes of copper, aluminum, iron, and zinc, a mounted resistor for use as a current load, a multimeter, and a manual.

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$35.70 Each $71.50 Each
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Replacement Belt for Van de Graaf Generator
Replacement Belt for Van de Graaf Generator
15597

Replacement Belt for Van de Graaf Generator
Replacement Belt for Van de Graaf Generator

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$5.40 Each $10.95 Each
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Thames and Kosmos Hydropower KitThames and Kosmos Hydropower Kit
Thames and Kosmos Hydropower Kit
16777

Hydropower has been used for hundreds of years in watermills and is now commonly used to generate electricity in applications such as hydroelectric dams and tidal power plants. Explore the power of water by building models and conducting experiments with them. Learn about how different devices are used to extract useful energy from moving water €” from a waterwheel in a small stream to a giant turbine in a tidal power station.

Build a waterwheel, a sawmill, and a hammer mill to harness the energy of moving water to do different types of physical work. Investigate the intriguing properties of water by performing experiments involving surface tension, adhesion, and cohesion. Learn about water pressure by building a water tower, communicating vessels, and a water fountain.

Construct a hydroelectric power station to generate electricity and light an LED. Learn about where the energy in ocean waves, tides, and rivers comes from, and discover how we can generate electricity from them. The full-color, 32-page experiment manual offers illustrated instructions and scientific information.

12 Experiments and building projects
Harness mechanical energy from water to do physical work
Generate electricity to light an LED Learn the physics of water turbines
Discover why hydropower is a promising source of energy.

Ages: 8+
Experiments: 12
Piece Count: 105
Manual Pages: 32
Product Dimensions: 14.6 x 11.5 x 2.3 in.
Product Weight: 2.1 lbs
Manual Dimensions: 5.5 x 8.25 in.
Batteries Required: N/A
Country of Origin: Taiwan
Year Released: 2009

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$14.99 Each $49.95 Each
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Thames and Kosmos Wind Power Kit
Thames and Kosmos Wind Power Kit
16778

Build a realistic wind turbine to harness power out of thin air.
Assemble a wind turbine complete with electric generator and adjustable blades
Conduct experiments to optimize its performance by adjusting the blades
Convert the wind turbine into an electric fan by using the electric generator
Build three additional models with the parts included
 Conduct more than 20 experiments with your wind turbine

Build a working wind turbine to harness power out of thin air. Wind is one of the most promising sources of clean, renewable energy available today. Wind energy has been used for centuries to pump water and crush grain in windmills, and is now increasingly being used to generate electricity to power our modern world. Assemble a wind turbine complete with electric generator, adjustable rotors, and wind speed indicator. Conduct more than 20 experiments with your wind turbine. Use the wind turbine to generate mechanical power to lift a heavy weight or generate electricity. Learn the physics of force and motion as it applies to wind power technology. Learn how to measure and calculate the different forces acting on the rotor blades. Read about different types of wind turbines and windmills. The full-color, 32-page experiment manual included. Ages 8 and up.

 

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$14.99 Each $49.95 Each
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Solarverter Solar Panel - 6 Volt, 220mA ModelSolarverter Solar Panel - 6 Volt, 220mA Model
Solarverter Solar Panel - 6 Volt, 220mA Model
13969

Used to power portable radios, cassette players, children's toys and other situations where four C, AA or AAA cells are used. Size:  6.375 x 4.5 x 0.375" 11 oz. The F6220 includes a 12 foot cord, DC adapter jacks and jumper cord.

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$18.89 Each $62.95 Each
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Solar Energy Kit
Solar Energy Kit
11728

This Kit is designed for use by all who are curious about solar energy. Included: a solar cell, which is encapsulated in a 1 3/4" x 2 7/8" panel. Also included is a 1.5 volt DC motor, a red plastic propeller, and one 12" lead wire. A fun way to acquire basic knowledge about the energy source of the future.
This Kit is designed for use by all who are curious about solar energy. Included: a solar cell, which is encapsulated in a 1 3/4" x 2 7/8" panel. Also included is a 1.5 volt DC motor, a red plastic propeller, and one 12" lead wire. A fun way to acquire basic knowledge about the energy source of the future.

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$11.90 Each $23.95 Each
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Solar Cell - 100mA
Solar Cell - 100mA
12052

A photovoltaic cell in an encapsulated panel to allow handling without breakage normally associated with fragile solar cells. 1" x 3/4". 45v, 100mA
A photovoltaic cell in an encapsulated panel to allow handling without breakage normally associated with fragile solar cells. 1" x 3/4". 45v, 100mA

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$4.90 Each $9.95 Each
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Sunpower House
Sunpower House
13680

Expand student's understanding of energy costs with this model of a passive solar house. The 11" x 11" x 8" model comes with a detailed Teacher's Guide containing activities in basic science, solar energy, and energy conservation. Grades 3-9.
Expand student's understanding of energy costs with this model of a passive solar house. The 11" x 11" x 8" model comes with a detailed Teacher's Guide containing activities in basic science, solar energy, and energy conservation. Grades 3-9.

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$29.90 Each $59.95 Each
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Ball and Card
Ball and Card
11736

Newton's Second Law of Motion. Demonstrates inertia.
Newton's Second Law of Motion. Demonstrates inertia.

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$3.29 Each $10.95 Each
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Cosmic Energy Kinetic Scuplture
Cosmic Energy Kinetic Scuplture
12932

Battery charged electro-magnetic mobile with perpetually moving forms. 9 1/4" high. One 9V battery required.
Battery charged electro-magnetic mobile with perpetually moving forms. 9 1/4" high. One 9V battery required.

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$3.89 Each $12.95 Each
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Hoberman SphereHoberman Sphere
Hoberman Sphere
14327

Combines mathematics, geometry and aesthetics into a magical motion of surprising simplicity, beauty and fun. Its system of polymer links expand and contract almost effortlessly, changing in volume 30 times. A sturdy toy, an object of art, a tool for teaching mathematics and science - the Hoberman Sphere's universal appeal and versatility have led its owners to discover uses even its inventor never dreamed of. Children love to wear it on their heads, or climb inside. Grown-ups have proved themselves no less inventive: jugglers juggle with them. Drill teams march with them. Magicians make magic with them. Teachers teach geometry with them. Motivational speakers use them as metaphors for unity, teamwork and expanding potential. Ages 4 and up. Expands from 9.5" to 30".

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$10.49 Each $34.95 Each
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Free Fall Tube
Free Fall Tube
16877

A very ecconomical apparatus to demonstrate that light and heavy objects fall at the same rate / accelaration in a vacuum. Apparatus consists of a 36" (910mm) long x 2.25" (55mm) diameter, transparent tube with a stopcock mounted in a rubber stopper on one end, and a solid rubber stopper on the other end. Supplied complete with a 13" long vinyl tubing for connection to a vacuum pump (not supplied), a metal disc and a feather.
A very ecconomical apparatus to demonstrate that light and heavy objects fall at the same rate / accelaration in a vacuum. Apparatus consists of a 36" (910mm) long x 2.25" (55mm) diameter, transparent tube with a stopcock mounted in a rubber stopper on one end, and a solid rubber stopper on the other end. Supplied complete with a 13" long vinyl tubing for connection to a vacuum pump (not supplied), a metal disc and a feather.

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$13.05 Each $43.50 Each
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The Spillnot
The Spillnot
16962

The design of the Spillnot uses the principles of Newtonian physics to keep the liquid in the container. The flexible handle and location of the suspension point above the center of the tray ensure that the forces on the liquid are always directed toward the supporting tray, even when the tray is in motion. Sideways forces usually responsible for spills are not transmitted to the tray by the flexible handle. Radial forces generated during swinging motion only force the liquid into the container more firmly. An inexpensive demonstration to intrigue students and challenge their analytical powers! Includes activity guide. 5" x 5" x 9". Weight: .25 lbs.
The design of the Spillnot uses the principles of Newtonian physics to keep the liquid in the container. The flexible handle and location of the suspension point above the center of the tray ensure that the forces on the liquid are always directed toward the supporting tray, even when the tray is in motion. Sideways forces usually responsible for spills are not transmitted to the tray by the flexible handle. Radial forces generated during swinging motion only force the liquid into the container more firmly. An inexpensive demonstration to intrigue students and challenge their analytical powers! Includes activity guide. 5" x 5" x 9". Weight: .25 lbs.

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$5.85 Each $19.50 Each
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Inertia Demonstrator
Inertia Demonstrator
16963

This robustly constructed inertia demonstrator works reliably every time and is a great improvement on traditional versions of this classic experiment. A steel ball rests on a thin metal card on top of a pillar, and a spring-loaded catch is mounted next to the pillar. When the catch is released, a piston strikes the edge of the metal card sharply. The card flies out from under the ball, which remains in place on top of the pillar due to its large inertial mass. The card is tethered to the aluminum base for easy recovery after the experiment.
This robustly constructed inertia demonstrator works reliably every time and is a great improvement on traditional versions of this classic experiment. A steel ball rests on a thin metal card on top of a pillar, and a spring-loaded catch is mounted next to the pillar. When the catch is released, a piston strikes the edge of the metal card sharply. The card flies out from under the ball, which remains in place on top of the pillar due to its large inertial mass. The card is tethered to the aluminum base for easy recovery after the experiment.

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$5.69 Each $18.95 Each
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Gyroscope
Gyroscope
11735

6 cm in diameter. Supplied with supported base with socket at top end for holding the gyroscope and demonstrating various principles.
6 cm in diameter. Supplied with supported base with socket at top end for holding the gyroscope and demonstrating various principles.

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$5.01 Each $16.70 Each
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Bicycle Wheel GyroscopeBicycle Wheel Gyroscope
Bicycle Wheel Gyroscope
15861

When is a bicycle wheel a gyroscope? When you put a new "spin" on it. Give our bicycle wheel a spin, then try to tilt or deflect it. Our student-sized bicycle wheel turns freely on its axis and has large, comfortable handles at each end. Because mass is concentrated at the rim, you can tilt the spinning wheel to feel the force of rotation. With instructions.
When is a bicycle wheel a gyroscope? When you put a new "spin" on it. Give our bicycle wheel a spin, then try to tilt or deflect it. Our student-sized bicycle wheel turns freely on its axis and has large, comfortable handles at each end. Because mass is concentrated at the rim, you can tilt the spinning wheel to feel the force of rotation. With instructions.

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$41.40 Each $82.95 Each
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Maxwell's Wheel
Maxwell's Wheel
16247

Useful for demonstrating momentum, conservation of energy and torque! The unit is suspended by two strong cords, which are wound around the shaft of the wheel and then released. The wheel will unwind as it falls but will wind itself back up as the momentum carries the wheel upward in the opposite direction. This oscillation process will continue for several moments as the wheel slowly loses momentum and travels less each time. Instructions included.

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$9.69 Each $32.30 Each
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Impact Car
Impact Car
15921

Sturdy plastic impact car features a graduated spring scale and a slide that is displaced on impact against an obstacle. Includes activity guide.
Sturdy plastic impact car features a graduated spring scale and a slide that is displaced on impact against an obstacle. Includes activity guide.

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$6.80 Each $13.75 Each
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Ballistics Car
Ballistics Car
15922

Push the cart and eject the steel ball from the spring-loaded barrel. The ball falls back into the barrel of the moving car, demonstrating that the forward motion of the ball is the same as the vehicle from which it was ejected. Comes with a steel ball, release pin and cord. The barrel permits two different heights of ball flight.
Push the cart and eject the steel ball from the spring-loaded barrel. The ball falls back into the barrel of the moving car, demonstrating that the forward motion of the ball is the same as the vehicle from which it was ejected. Comes with a steel ball, release pin and cord. The barrel permits two different heights of ball flight.

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$29.20 Each $58.50 Each