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In this health activity, learners explore breathing, lungs and asthma. Learners test their lung capacity by blowing air into balloons.

$5 - $10 per group Ages 8 - 14 30 to 45 minutes
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In this activity, learners will measure the length of a shadow and use the distance from the equator to calculate the circumference of the earth.

1 cent - $1 per group Ages 8 - 18 10 to 30 minutes
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In this activity, learners investigate the relative growth of lengths, areas, and volumes as cylinders are scaled up.

$1 - $5 per group Ages 8 - 14 1 to 2 hours
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In this activity, learners will measure the length of their shadow from the Sun and compare it three to four months later.

free Ages 6 - 14 1 to 12 months
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In this math lesson, learners explore the real world meaning of slope. Learners conduct a balloon experiment in which they measure the circumference and flight time of deflating balloons.

$1 - $5 per group Ages 11 - 14 45 to 60 minutes