Restless Earth Geology Teaching Model Subcategory_Pipette Bulbs Three-part color-coded human skull model

Three-part color-coded human skull model differentiates bone regions and sutures for detailed cranial anatomy instruction

Double-pole double-throw brass knife switch

sized for precision-resistor and thermocouple work where stable resistance matters

relating photon frequency to the kinetic energy of emitted electrons for quantum physics investigations

accelerometers

Restless Earth Geology Teaching Model Subcategory_Pipette Bulbs Three-part color-coded human skull modelWall mountable Earth dynamics model depicting sea floor spreading, subduction zones, continental interiors, and mid ocean ridges, each structure individually labeled for plate tectonics units.