10-100kΩ Single Dial Resistance Box Lab Supplies_Filtering Supplies holding volume constant across specimens

holding volume constant across specimens for isolated density comparisons

Used to render a permanent magnet's field lines visible without iron filings

this pipette-type hydrometer draws electrolyte into a glass body with a colored-zone float for direct reading

and mechanical-advantage experiments (stand base and support clamp sold separately)

Wooden baseboard with millimeter scale

10-100kΩ Single Dial Resistance Box Lab Supplies_Filtering Supplies holding volume constant across specimensHigher impedance single decade resistance box stepping from 10k to 100k ohms in 10k ohm increments, providing the standard reference decade for op amp input and analog signal path circuit work.