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In this demonstration, learners compare the relative sizes and masses of scale models of the planets as represented by fruits and other foods.

$10 - $20 per group Ages 8 - 14 30 to 45 minutes
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In this outdoor activity, learners measure familiar objects in nature to practice working with the metric system.

$10 - $20 per group Ages 6 - 14 45 to 60 minutes