Geographical Terms Teaching Model Lab Supplies_Measurement Battery-or-mains low-frequency generator producing sine

Battery-or-mains low-frequency generator producing sine

Determines heat exchange during reactions and phase changes via a 100 by 75mm polished aluminum vessel with wood-and-plastic lid

Rod-mounted pulley with a 40mm wheel on a low-friction cone bearing in a U-frame

Heaviest 125-watt soldering iron in the line with a wooden bakelite handle

the hand-driven mechanism spinning seven color segments fast enough to merge into apparent white through persistence-of-vision

Geographical Terms Teaching Model Lab Supplies_Measurement Battery-or-mains low-frequency generator producing sineVisualizes common landforms peaks, valleys, plateaus, and deltas on a hand painted three dimensional model, each feature labeled for physical geography reference.