Description

Hard vulcanized ebonite rod that takes on a strong negative charge when rubbed with fur

Silicon tubing at 10 by 3 mm

and mixed autotrophic-heterotrophic characteristics for protist biology teaching

Wooden baseboard with millimeter scale

Electrostatic System Physics Kit with 26 Components for 11 Experiments, Carry Case archive-pending Hard vulcanized ebonite rod thatElectrostatic physics kit pairs 26 components with 11 experiments on static electricity, charge, and field interactions in a classroom storage case.

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Electrostatic System Physics Kit with 26 Components for 11 Experiments, Carry Case archive-pending Hard vulcanized ebonite rod that

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