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In this activity, learners will experiment with water- and air-filled balloons as a way of dampening sound before it reaches their ears.

$5 - $10 per group Ages 11 - adult 10 to 30 minutes
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As a long-term project, you can rear monarch butterflies at home or in a classroom.

$5 - $10 per group Ages 6 - adult 1 to 12 months