Everyone screams when they see all the things that magnets can do with all their shapes and sizes. Now with the Magnet Tube Magnetic Field Viewer, you can truly see the magnetic fields. The magnet tube is a plastic tube that is sealed with iron filing inside. In the tunnel, there is a tube in which the alnico magnet fits in. When you shake the tube the iron filings collect, connect, and show the arcs of the magnetic fields. This is great for science fairs or for the kids to create all kinds of designs with the filings every time they shake it up.

To learn more about the viewer or to buy, click here.