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

each disc 37 mm in diameter and 11 mm thick

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

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

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.