Question #761db

1 Answer
Gió
Feb 12, 2016

We could use a magnet.

Explanation:

Iron is made up of a lot of litle magnetic sensitive molecules that tends to react to the presence of a magnetic field. A piece of iron will "feel" the magnetic field and orientate itself according to it.
http://hyperphysics.phy-astr.gsu.edu/hbase/solids/ferro.html
http://warrenfyfeinfo.net/magnetic-poles-can-split-in-two/
[iron fillings around a magnet]

Sawdust is an organic molecule that like a bundle of cooked spaghetti doesn't react a lot to the magnetic field or at least not so dramatically.

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