Description

Selected through four rotary-switch decades from 0 to 11

and physics principles in classroom investigations

sodium benzoate

5 inch specific gravity cylinder with a top hook

and a removable cord post

Zinc-Plated Steel Bar Magnet Pair with Keepers, 150 x 10 x 10mm Chemical_Test Strips Selected through four rotary-switch decadesZinc plated rectangular steel bar magnet pair packaged with keepers that bridge the poles in storage, preserving field strength between magnetism and field line activities.

Exchange/Return Notes

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Zinc-Plated Steel Bar Magnet Pair with Keepers, 150 x 10 x 10mm Chemical_Test Strips Selected through four rotary-switch decades

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