The biggest selling point these days at our house for school work is to say, "Lets do an experiment!" So this tray was a huge hit! This is another one from Karen's pages.
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This tray has a need attached to the cork, a small piece of magnet, water in a bowl and our compass.
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| A close-up of the first cup. |
All you do to make a compass is to rub the magnet on the needle for a looooong time to magnetize it and drop it in the bowl of water, as accurately as possible in the center of the bowl. Wait and watch the needle slowly turn to point North. Verify using your compass!
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