"gel box"
Resistance Substitution Apparatus
The Resistance Substitution Apparatus is convenient for general-purpose resistance work.
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Science Olympiad© 2025-2026 Circuit Lab Kit
Prepare for upcoming competitions with this practice kit, the only kits officially licensed and approved by Science Olympiad!
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Ward's® NYS Investigations Physics, Wheels to Watts
The NYS investigations kits have been tested by local NYS teachers to make sure they work in the classroom.
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Ward's® NYS Investigations Physics, Induction Junction
The NYS investigations kits have been tested by local NYS teachers to make sure they work in the classroom.
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Salt Bridge
Comprises an inverted “U” tube with its ends closed by sintered discs. For use in experiments involving the measurement of cell EMF under conditions of forward, zero and reverse current flow. The bridge comprises an inverted “U” tube with its ends closed by sintered discs. This apparatus provides a more effective method of making reversible cells then the wet filter paper or agar gel methods. Dia. of arms 13mm, overall width 80mm, overall height 100mm.
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Board of Education Shield
A convenient breadboard for prototyping with no soldering required.
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Crazy Circuits Classroom Sets: Circuits 101
A complete classroom solution to the daunting task of teaching electronics.
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Crazy Circuits Classroom Sets: Programming 101
A complete classroom solution to the daunting task of teaching electronics and programming.

