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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
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In this activity, learners create slime to model mucus and examine how it collects simulated particles. Mucus keeps particles from the environment out of our lungs when we breathe.

$5 - $10 per student Ages 4 - 11 10 to 30 minutes
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Most of the time, we don't have to think about breathing. In fact, you're probably breathing right now without thinking about it!

$1 - $5 per student Ages 8 - adult 10 to 30 minutes
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In this activity, learners work in teams to construct human lung models from small plastic beverage bottles and balloons.

1 cent - $1 per student Ages 8 - 14 30 to 45 minutes