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In this physics activity (page 2 of the PDF), learners will construct their own walkalong glider. They will explore how air, though invisible, surrounds and affects other objects.

$1 - $5 per student Ages 8 - 18 30 to 45 minutes
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What keeps bubbles and other things, like airplanes, floating or flying in the air?

1 cent - $1 per student Ages 4 - 14 10 to 30 minutes