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In this activity about the baroreceptor reflex (BR) arc (page 123 of the PDF), learners discover the importance of maintaining adequate arterial blood pressure through a role playing exercise.

1 cent - $1 per group Ages 8 - 18 45 to 60 minutes
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In this activity, learners investigate color vision as well as plan and conduct their own experiments.

$5 - $10 per group Ages 8 - 18 1 to 2 hours