Educator How To: Make Your Own Ancient Chinese Compass!

  The compass, historically one of the most important aids to navigation, helped to drive the great sea voyages of Europe’s Age of Discovery. The compass, a Chinese invention, was introduced to Europeans by way of Arab traders in the 13th century. Two thousand years ago the Chinese had already developed a primitive working compass.  […]

Educator How-To: The magic of magnetic fields

What better way to understand how magnetic fields work than to see them for yourselves? Materials: •    Magnetic field line cards (green) – one per child •    Magnetic nail polish •    Clear nail polish •    Assorted magnets of various shapes and sizes •    Large clear glass playing pieces •    Button magnets (at least ½ inch) […]


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