- Lab stand with string and paper clip
- Two 3/4" x 1/2" neodymium magnet
- Beaker (600-1000 ml) with water
- Propane torch
- Pull the paper clip up near the magnet as shown and place the beaker of water below the clip.
- Heat the paper clip with the torch until the clip loses its ferromagnetic property and falls into the water.
- Once cooled, the clip will again be attracted to the magnet