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This lesson focuses on surface area and how the shape of sugar crystals may differ as they are grown from sugars of different coarseness.

$1 - $5 per group Ages 8 - 14 1 to 7 days
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In this activity, learners compare different types of salt crystals under a magnifying glass.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes