- Glass or shallow bowl
- Straight pin or needle
- Small craft or block magnet
Step 1 Magnetize your needle
Take your magnet, and rubbing it over and over again in one direction down half the length of your needle. Rotate the needle to make sure you've gotten the whole thing!
Step 2 Build the compass pointer
Cut out a small disc of cork, and stick the needle through the middle, so that it's sticking out both ends evenly.
Step 3 Give your needle a place to float
Fill your cup or shallow bowl with water, deep enough so the cork can float freely.
Step 4 Float your needle
Float your cork disc on the surface of the water. The magnetized end of the needle will rotate to point toward magnetic north!
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