High Resolution Plastic Economy Dynamometer with Zero-Point Calibration Capacity_50mL each feature labeled on an

each feature labeled on an included key card

Single-pole double-throw brass knife switch on a durable plastic base

and rubber at a shared diameter

Refill kit provides replacement chemicals for NYS intermediate learning activities with pre-measured quantities and safety documentation

The large crystals indicate slow cooling within a magma chamber

High Resolution Plastic Economy Dynamometer with Zero-Point Calibration Capacity_50mL each feature labeled on anPre measurement zero point calibration eliminates bias from the empty hook weight, with a clear plastic body and high resolution scale for classroom force reading.