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In this activity (pages 7-16), learners model various crystal structures with LEGOs. This activity also contains additional links that explain how to create other crystal structures.

$5 - $10 per group Ages 11 - adult 10 to 30 minutes
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In this activity, learners use geometry to predict the shape of carbon. Learners twist and attach chenille stem pieces that represent bonds between different carbon atoms.

$1 - $5 per group Ages 11 - 18 10 to 30 minutes