Magnetic Earth Field Model, Use it as is or place it on an overhead projector to show the whole class, Iron filings are suspended in oil to allow the included magnet to align them to its field
Magnetic Field Chamber Height: 4.75in Tall, Od: 3.25in, Idr: 0.75in, Magnet Not Included, Great For The Classroom. Extremely Useful For Students To Visualize Magnetic Fields In Three Dimensions, Instead Of The Usual Two Dimensional Of Most Iron Filings Field Visualizers
Magnetic Field Demonstration Plate - Large 250 X 250 mm, Comprising Of A Transparent Plate Having A Matrix Of Small Circular Chambers, Each Chamber Containing An Iron Rod And Functioning Independently With As A Plotting Compass
Magnetic Field Demonstrator - Set Of 4 Plates, Each Plate Is 15.3Cm X 7.6Cm X 0.6Cm - 98 Chambers, 4 Transparent Plates To Demonstrate Magnet Fields, Chamber Containing An Iron Rod And Functioning Effectively As A Plottingcompass, Plates May Be Arranged In Various Ways