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In this activity, learners use a pneumatic trough (see related activity) to generate and collect pure oxygen.

Over $20 per student Ages 14 - adult 30 to 45 minutes
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In this activity, learners test to see if carbon dioxide is present in the air we breathe in and out by using a detector made from red cabbage.

Over $20 per group Ages 8 - adult 10 to 30 minutes