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In this activity, learners design and build a NASA rover using raw pasta and candy with a limited imaginary budget.

$5 - $10 per group Ages 8 - 18 30 to 45 minutes
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In this activity learners will build roller coasters and test them using small balls or marbles.

$5 - $10 per group Ages 4 - adult 10 to 30 minutes
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Learners work in groups to design and build a tower out of balsa wood. As a motivator, they can compete to build a tower with the highest strength-to-weight ratio.

$5 - $10 per group Ages 11 - 14 1 to 2 hours
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This activity (on page 3 of the PDF under GPS: Sailboat Design Activity) is a full inquiry investigation into design optimization.

$5 - $10 per group Ages 8 - 14 2 to 4 hours