Demonstration Transformer placed in Gratnells tray, A large scale transformer, ideal for classroom, The coils, fitted with intermediary outputs providing many transformation ratios, Weight (lb): 27.7, Length (in):17.7, Width (in):15.4, Height (in):9.8
Density Set - Aluminium, Set of 12 aluminium cylindrical bars of different length but the same diameter. Students learn that the density of a substance is constanteven as its mass and volume change. Comes in an attractive wooden holder
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