Bark Magnetic Iron Powder Experiment.
Schlüsselwörter
magnetic,
iron,
powder,
sand,
magnet,
black,
magnetism,
particle,
pattern,
paper,
white,
metal,
steel,
effect,
abstract,
texture,
dark,
power,
education,
science,
scientific,
experiment,
physics,
pole,
material,
mineral,
element
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