"Shiv Dial Sud & Sons"
Conductivity Bars
This new conductivity bar set features sensitive liquid crystal temperature indicators, which are attached to the front of each of four metal bars.
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Moment of Force Apparatus
The Moment of Force Apparatus contains everything needed to study principles of mass, levers, moments, forces, and equivalence.
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Closed Case Form Electroscope
Closed Case Form Electroscope is enclosed, preventing air currents from affecting the deflection of the leaves.
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Newtonian Demonstration
The large size of the Newtonian Demonstration makes a big impression and helps explain the theory.
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Economy Magnet Kit
The Economy Magnet Kit showcases the basics of magnetism.
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Energy Transformation Kit
Appropriate for grades 6 to 12 Brings the First Law of Thermodynamics to life! This pair of precision-machined, chrome-plated steel balls is actually a hands-on demonstration in energy transformation. By striking the balls together, you will create enough heat at the point of contact to burn a hole in a sheet of paper.
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Inclined Plane Set
Present a Wide Variety of Standard Force and Motion Activities.
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Density/Slope Class Set
Educators can conduct a comprehensive array of density experiments with the density/slope class set.
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Density ID Set
A set of 15 samples of different materials used to challenge students to identify materials based on measurement of their density. For some specimens this will be straightforward. In other cases, it will lead to a discussion of uncertainty in measurements and data, and to an awareness that different materials may have nearly the same density.
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Differential and Sympathetic Tuning Forks
These large alloy tuning forks are designed to demonstrate resonance, beat frequency, and sympathetic vibration.
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Quantitative Electroscope
Electrostatic charges are indicated by the deflection of a black plastic straw pivoted on a pin. The polished zinc plate on top is used to demonstrate photoelectric effect and various other electrostatic demonstrations. The metal case measures 14 cm in diameter. The scale is graduated in 10° increments in two quadrants.
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Complete Ripple Tank Apparatus
This ripple tank is transparent, acrylic plastic and supported in a sturdy plastic frame.
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Alloy Tuning Forks
These long-lasting aluminum tuning forks have a full sound.




