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Marble Run!

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This activity (on page 2 of the PDF under SciGirls Activity: Luge) is a full inquiry-based challenge related to motion and design optimization.
$1 - $5 per group Ages 8 - 14 1 to 2 hours

The Effects of Acid Rain

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In this environmental science activity (page 4 of the PDF), learners use vinegar and chalk to observe the effect of acid rain on various building materials and plant life.
$1 - $5 per group Ages 6 - 14 4 to 24 hours