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Breathing Yeasties

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In this life science activity (page 8 of the PDF), learners explore the carbon cycle by mixing yeast, sugar and water.
Over $20 per group Ages 8 - 14 1 to 2 hours

It's a Gas, Man

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In this activity, learners discover if carbon dioxide has an effect on temperature.
1 cent - $1 per group Ages 6 - 14 1 to 2 hours