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In this activity, learners make a miniature greenhouse or "terrarium" to explore the greenhouse effect.

$1 - $5 per student Ages 8 - 18 1 to 7 days
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In this activity, learners are challenged to design and build a miniature tree house in a potted plant. This activity uses engineering concepts to encourage creativity.

$10 - $20 per student Ages 8 - adult 45 to 60 minutes