A Compass
We made our own compass for Science.
Supplies: yogurt lid, water, sewing needle, magnet, permanent marker and a cork
Directions: magnetize your needle by rubbing a magnet on it in the same direction a few times, put the needle through a small piece of cork, write N, S, E, W on each side of the inside of the yogurt lid, fill with water and float the needle on it.
Result: it will always point north...no matter how many times you pick it up and turn it around the other way.
1 comment:
Cool! We haven't done that one yet.
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