Description

Plastic sheath and rubber hanging cap on this 12-inch yellow-backed spirit thermometer reading -10 to 110°C

5 newtons for measuring small forces during spring-law and tension-force classroom investigations

wheel-and-axle

Used as the positive-rail counterpart to the long black lead

Double Convex Glass Lens, 50mm Diameter, 300-1000mm Focal Length Range Grade_Food Grade Plastic sheath and rubber hangingBuilt for long bench convergence flexibility, a 50mm double convex glass lens spanning 300 1000mm focal lengths gives projection style optics setups a single range rated element.

Exchange/Return Notes

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Double Convex Glass Lens, 50mm Diameter, 300-1000mm Focal Length Range Grade_Food Grade Plastic sheath and rubber hanging

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