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COSI's Bubble Recipe

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Everybody loves bubbles, and this is the best bubble recipe ever!
$5 - $10 per group Ages 4 - 11 30 to 45 minutes

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