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Learners make a skydiver and parachute contraption and launch it. They see that the drag created by air resistance slows the descent of skydivers as they travel back to Earth.

1 cent - $1 per group Ages 11 - 18 30 to 45 minutes
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Learners construct and launch paper helicopters.

1 cent - $1 per group Ages 11 - 18 45 to 60 minutes
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The goal of this activity is to build a miniature bobsled that is either the fastest or the slowest. Learners use recycled materials to design, build, and test their bobsled on a bobsled track.

$5 - $10 per group Ages 6 - 18 10 to 30 minutes
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This activity (on page 3 of the PDF under GPS: Roller Coaster Design Activity) is a full inquiry investigation into g-force and acceleration.

$5 - $10 per student Ages 8 - 14 1 to 7 days