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Do the Mystery Samples Contain Life?

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In this activity (on pages 13-16 of the PDF) learners investigate three mystery samples to see which one contains life. The three samples are sand, sand and yeast, and sand and antacid.
1 cent - $1 per group Ages 4 - 14 30 to 45 minutes

Soda Geyser

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In this quick activity (page 1 of PDF under SciGirls Activity: Lift Off), learners will use the ever-popular soda geyser experiment to test the reactivity of the various sugar candies or mints.
$1 - $5 per group Ages 8 - 14 10 to 30 minutes