About This

• This complete demonstration set mainly consists of transparent iron powder storage container and matched permanent magnet, specially developed for standard middle school physics magnetism curriculum verification experiments.
• The magnetic field display box is manufactured from high-transparency plastic with rectangular inner cavity pre-filled with quantitative fine iron filings for field pattern observation.
• Tilt and adjust the placement angle of the plastic box freely to drive internal iron filings shift and rearrange following the surrounding magnetic field distribution.
• It serves as standard classroom teaching equipment and physics lab accessory to turn invisible magnetic induction lines into visible patterned arrangement via iron powder magnetization characteristics.
• After placing the magnet inside the box, dispersed iron particles get magnetized into tiny miniature magnets and align end-to-end to visually outline the actual layout of surrounding magnetic field lines.