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Why do Eclipses Happen? What Is an Eclipse? About the Ac tivity Using simple materials, participants create 3D models of the Earth, Moon and Sun and demonstrate solar and lunar eclipses.
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Document Date: 2012-09-25 16:00:23
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Why do Eclipses Happen? What Is an Eclipse? About the Ac tivity Using simple materials, participants create 3D models of the Earth, Moon and Sun and demonstrate solar and lunar eclipses.